CN105397434A - Machining process of hydraulic system pipe joint sleeve - Google Patents
Machining process of hydraulic system pipe joint sleeve Download PDFInfo
- Publication number
- CN105397434A CN105397434A CN201511007001.XA CN201511007001A CN105397434A CN 105397434 A CN105397434 A CN 105397434A CN 201511007001 A CN201511007001 A CN 201511007001A CN 105397434 A CN105397434 A CN 105397434A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- lengths
- steel pipes
- oxide layer
- quenching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/025—Stamping using rigid devices or tools for tubular articles
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/085—Cooling or quenching
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a machining process of a hydraulic system pipe joint sleeve. The machining process is characterized by comprising procedures of material selection, cutting, burr removal, oxidation layer removal, cold pressing, quenching, inner tooth machining and inspection. The invention provides the machining process of the hydraulic system pipe joint sleeve; through implementation of the process, the sleeve machining efficiency and quality are improved; traditional manual polishing is changed to cold pressing, so that the labor intensity of operators can be relieved, the efficiency is improved, the sleeve machining quality can be guaranteed, the sleeve pass percent is increased; and secondary sleeve quenching replaces traditional primary quenching, so that the sleeve hardness and strength are improved, the sleeve quality performance is further improved, the tightness and the connecting strength between a hydraulic system pipe and hydraulic equipment are improved, and the service life of the hydraulic system pipe is prolonged.
Description
Technical field
The present invention relates to hydraulic tube processing technique field, specifically a kind of processing technology of hydraulic coupler sleeve.
Background technology
At present, hydraulic pressure system is under the overall leadership to be applied in various hydraulic test, hydraulic pressure system is under the overall leadership to be made up of pipe joint and hydraulic tube, and pipe joint comprises junction block mostly, sleeve, a few part such as sealing ring, the effect of its middle sleeve improves sealing between the under the overall leadership and hydraulic test of hydraulic pressure system and bonding strength, its quality also directly affects the capability and performance of the under the overall leadership and hydraulic test of hydraulic pressure system, mostly existing hydraulic test is higher in intensity, work under the environment that the frequency is larger, damage can be produced for a long time to its accessory, also can impact the sleeve of hanging joint, if the capability and performance of sleeve is not good, the sealing between the under the overall leadership and hydraulic test of hydraulic pressure system and bonding strength can be caused to reduce, shorten the service life that hydraulic pressure system is under the overall leadership, in existing sleeve process, more operation is had to need manual operation, especially in the operation of polishing, need partial removal unnecessary on sleeve, current method adopts manual polishing, not only reduce operating efficiency, improve labour intensity, also the crudy guaranteeing sleeve is difficult to, cause the product percent of pass of sleeve not high.
Summary of the invention
The problem that the inefficiency that the sleeve that the object of the invention is to overcome existing hydraulic pressure system pipe joint under the overall leadership exists in process, labour intensity is large, be difficult to guarantee crudy, improve the processing technology of the hydraulic coupler sleeve that a kind of operating efficiency is high, crudy good, mechanization degree is high, superior by the sleeve capability and performance of this processes, the sealing between the under the overall leadership and hydraulic test of hydraulic pressure system and bonding strength can be improved, extend the service life that hydraulic pressure system is under the overall leadership.
The technical scheme that the technical problem that the present invention solves is taked is:
A processing technology for hydraulic coupler sleeve, is characterized in that, comprising and select materials, cut, flash removed, removing oxide layer, cold pressing, quench, process internal tooth, inspection process, is below concrete step:
The first step: select materials, select any surface finish, the steel pipe of flawless, residue, rusty stain is mother tube;
Second step: cutting, piles up neatly by 10-30 root mother tube, sends in cutting equipment and cuts, and cuts into the lengths of steel pipes that 39-41mm is long;
3rd step: deburring, lengths of steel pipes is put into lathe, when rotating speed is 1200-1500r/min, removes the burr, the overlap that produce in the cutting process of lengths of steel pipes two ends, the thickness of lengths of steel pipes two ends removing all controls at 1-2mm, and the both ends of the surface depth of parallelism is 0.06-0.08;
4th step: quenching, lengths of steel pipes after deburring is put into glowing furnace and carries out Quenching Treatment, temperature is 1100-1200 DEG C and is incubated 30-40min, lengths of steel pipes is taken out, be cooled to room temperature after put into glowing furnace again and carry out secondary quenching, Qa temperature is 800-900 DEG C, come out of the stove air cooling to room temperature after insulation 40-50min, and measure hardness by hardness, hardness is HRB55-70;
5th step: oxide layer, putting into grinding machine to the lengths of steel pipes after quenching carries out except inner surface, the process of outer surface oxide layer, when removing the oxide layer of inner surface, the rotating speed controlling lengths of steel pipes is 1000-1100r/min, the thickness removing inner surface is 0.5-0.8mm, when removing the oxide layer of inner surface, the rotating speed controlling lengths of steel pipes is 1400-1500r/min, and the thickness removing inner surface is 1-2mm;
6th step: cold pressing, puts into cold stamping die by the lengths of steel pipes removing oxide layer, the forcing press of 63-65T carries out punching press, and after punching press, product requirement outward appearance is without scuffing or other open defect, obtained sleeve blank;
7th step: processing internal tooth, processes its internal tooth by sleeve blank when rotating speed is 2000-2200r/min, after internal tooth machines, and obtained sleeve;
8th step: inspection, testing to sleeve, after the assay was approved, carries out packing, storing.
Further, frock of colding pressing described in the 6th step comprises upper module, lower module, described upper module is provided with pressing block, positioning sleeve, and is provided with stamped groove on positioning sleeve, described lower module is provided with locating dowel, lower cushion block, and is provided with limited post on lower cushion block.
Further, described positioning sleeve is set to hollow structure, and is connected with locating dowel by positioning sleeve.
Beneficial effect: the technique that the invention provides a kind of processing hydraulic system pipes pipe joint sleeve, by the enforcement of this technique, improve working (machining) efficiency and the quality of sleeve, traditional manual polishing is changed into and colds pressing, the labour intensity of operating personnel can not only be reduced, raise the efficiency, also the crudy of sleeve can be guaranteed, improve the qualification rate of sleeve products, traditional primary quenching process is replaced by the secondary quenching process of sleeve, improve hardness and the intensity of sleeve, the capability and performance of further raising sleeve, thus the sealing improved between the under the overall leadership and hydraulic test of hydraulic pressure system and bonding strength, improve the service life that hydraulic pressure system is under the overall leadership.
Accompanying drawing explanation
Fig. 1 is the structural representation of frock of colding pressing in the present invention.
In figure: 1. upper module, 2. lower module, 3. pressing block, 4. positioning sleeve, 5. stamped groove, 6. locating dowel, 7. lower cushion block, 8. limited post.
Detailed description of the invention
Embodiment 1:
A processing technology for hydraulic coupler sleeve, is characterized in that, described processing technology comprises selects materials, cuts, flash removed, removing oxide layer, colds pressing, quenches, processes internal tooth, inspection process, is below concrete step:
The first step: select materials, select any surface finish, the steel pipe of flawless, residue, rusty stain is mother tube;
20 mother tubes are piled up neatly by second step: cutting, send in cutting equipment and cut, and cut into the lengths of steel pipes that 40mm is long;
3rd step: deburring, puts into lathe by lengths of steel pipes, when rotating speed is 1300r/min, removes the burr, the overlap that produce in the cutting process of lengths of steel pipes two ends, and the thickness of lengths of steel pipes two ends removing all controls at 1mm, and the both ends of the surface depth of parallelism is 0.07;
4th step: quenching, lengths of steel pipes after deburring is put into glowing furnace and carries out Quenching Treatment, temperature is 1180 DEG C and is incubated 35min, lengths of steel pipes is taken out, be cooled to room temperature after put into glowing furnace again and carry out secondary quenching, Qa temperature is 850 DEG C, come out of the stove air cooling to room temperature after insulation 45min, and measure hardness by hardness, hardness is HRB63;
5th step: oxide layer, putting into grinding machine to the lengths of steel pipes after quenching carries out except inner surface, the process of outer surface oxide layer, when removing the oxide layer of inner surface, the rotating speed controlling lengths of steel pipes is 1100r/min, the thickness removing inner surface is 0.6mm, when removing the oxide layer of inner surface, the rotating speed controlling lengths of steel pipes is 1450r/min, and the thickness removing inner surface is 1mm;
6th step: cold pressing, the lengths of steel pipes removing oxide layer is placed on limited post 8, the forcing press of 64T carries out punching press, the punching press downwards of pressing block 3 on upper module 1, stamped groove 5 is made to cover one end of lengths of steel pipes, limited post 8 on lower cushion block 7 can avoid lengths of steel pipes to offset in punching course, improve the stability of lengths of steel pipes in punching course, positioning sleeve 4 is set to hollow structure, and positioning sleeve 4 is connected with locating dowel 6, by positioning sleeve 4, locating dowel 5 can avoid upper module 1, lower module 2 offsets, the stability of further raising lengths of steel pipes in punching course, also the stamping quality of lengths of steel pipes can be improved, after punching press, product requirement outward appearance is without scuffing or other open defect, obtained sleeve blank,
7th step: processing internal tooth, processes its internal tooth by sleeve blank when rotating speed is 2100r/min, after internal tooth machines, and obtained sleeve;
8th step: inspection, testing to sleeve, after the assay was approved, carries out packing, storing.
Embodiment 2:
A processing technology for hydraulic coupler sleeve, is characterized in that, described processing technology comprises selects materials, cuts, flash removed, removing oxide layer, colds pressing, quenches, processes internal tooth, inspection process, is below concrete step:
The first step: select materials, select any surface finish, the steel pipe of flawless, residue, rusty stain is mother tube;
8 mother tubes are piled up neatly by second step: cutting, send in cutting equipment and cut, and cut into the lengths of steel pipes that 38mm is long;
3rd step: deburring, puts into lathe by lengths of steel pipes, when rotating speed is 1100r/min, removes the burr, the overlap that produce in the cutting process of lengths of steel pipes two ends, and the thickness of lengths of steel pipes two ends removing all controls at 0.8mm, and the both ends of the surface depth of parallelism is 0.05;
4th step: quenching, lengths of steel pipes after deburring is put into glowing furnace and carries out Quenching Treatment, temperature is 1050 DEG C and is incubated 27min, lengths of steel pipes is taken out, be cooled to room temperature after put into glowing furnace again and carry out secondary quenching, Qa temperature is 750 DEG C, come out of the stove air cooling to room temperature after insulation 36min, and measure hardness by hardness, hardness is HRB54;
5th step: oxide layer, putting into grinding machine to the lengths of steel pipes after quenching carries out except inner surface, the process of outer surface oxide layer, when removing the oxide layer of inner surface, the rotating speed controlling lengths of steel pipes is 900r/min, the thickness removing inner surface is 0.4mm, when removing the oxide layer of inner surface, the rotating speed controlling lengths of steel pipes is 1300r/min, and the thickness removing inner surface is 0.7mm;
6th step: cold pressing, the lengths of steel pipes removing oxide layer is placed on limited post 8, the forcing press of 62T carries out punching press, the punching press downwards of pressing block 3 on upper module 1, stamped groove 5 is made to cover one end of lengths of steel pipes, limited post 8 on lower cushion block 7 can avoid lengths of steel pipes to offset in punching course, improve the stability of lengths of steel pipes in punching course, positioning sleeve 4 is set to hollow structure, and positioning sleeve 4 is connected with locating dowel 6, by positioning sleeve 4, locating dowel 5 can avoid upper module 1, lower module 2 offsets, the stability of further raising lengths of steel pipes in punching course, also the stamping quality of lengths of steel pipes can be improved, after punching press, product requirement outward appearance is without scuffing or other open defect, obtained sleeve blank,
7th step: processing internal tooth, processes its internal tooth by sleeve blank when rotating speed is 1900r/min, after internal tooth machines, and obtained sleeve;
8th step: inspection, testing to sleeve, after the assay was approved, carries out packing, storing.
Embodiment 3:
A processing technology for hydraulic coupler sleeve, is characterized in that, described processing technology comprises selects materials, cuts, flash removed, removing oxide layer, colds pressing, quenches, processes internal tooth, inspection process, is below concrete step:
The first step: select materials, select any surface finish, the steel pipe of flawless, residue, rusty stain is mother tube;
32 mother tubes are piled up neatly by second step: cutting, send in cutting equipment and cut, and cut into the lengths of steel pipes that 45mm is long;
3rd step: deburring, puts into lathe by lengths of steel pipes, when rotating speed is 1600r/min, removes the burr, the overlap that produce in the cutting process of lengths of steel pipes two ends, and the thickness of lengths of steel pipes two ends removing all controls at 2.5mm, and the both ends of the surface depth of parallelism is 0.09;
4th step: quenching, lengths of steel pipes after deburring is put into glowing furnace and carries out Quenching Treatment, temperature is 1300 DEG C and is incubated 50min, lengths of steel pipes is taken out, be cooled to room temperature after put into glowing furnace again and carry out secondary quenching, Qa temperature is 1000 DEG C, come out of the stove air cooling to room temperature after insulation 60min, and measure hardness by hardness, hardness is HRB80;
5th step: oxide layer, putting into grinding machine to the lengths of steel pipes after quenching carries out except inner surface, the process of outer surface oxide layer, when removing the oxide layer of inner surface, the rotating speed controlling lengths of steel pipes is 1400r/min, the thickness removing inner surface is 1mm, when removing the oxide layer of inner surface, the rotating speed controlling lengths of steel pipes is 1700r/min, and the thickness removing inner surface is 2.2mm;
6th step: cold pressing, the lengths of steel pipes removing oxide layer is placed on limited post 8, the forcing press of 70T carries out punching press, the punching press downwards of pressing block 3 on upper module 1, stamped groove 5 is made to cover one end of lengths of steel pipes, limited post 8 on lower cushion block 7 can avoid lengths of steel pipes to offset in punching course, improve the stability of lengths of steel pipes in punching course, positioning sleeve 4 is set to hollow structure, and positioning sleeve 4 is connected with locating dowel 6, by positioning sleeve 4, locating dowel 5 can avoid upper module 1, lower module 2 offsets, the stability of further raising lengths of steel pipes in punching course, also the stamping quality of lengths of steel pipes can be improved, after punching press, product requirement outward appearance is without scuffing or other open defect, obtained sleeve blank,
7th step: processing internal tooth, processes its internal tooth by sleeve blank when rotating speed is 2500r/min, after internal tooth machines, and obtained sleeve;
8th step: inspection, testing to sleeve, after the assay was approved, carries out packing, storing.
Above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that the common engineers and technicians in this area make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (3)
1. a processing technology for hydraulic coupler sleeve, is characterized in that, comprise and select materials, cut, flash removed, removing oxide layer, cold pressing, quench, process internal tooth, inspection process, concrete steps are as follows:
The first step: select materials, select any surface finish, the steel pipe of flawless, residue, rusty stain is mother tube;
20 mother tubes are piled up neatly by second step: cutting, send in cutting equipment and cut, and cut into the lengths of steel pipes that 40mm is long;
3rd step: deburring, puts into lathe by lengths of steel pipes, when rotating speed is 1300r/min, removes the burr, the overlap that produce in the cutting process of lengths of steel pipes two ends, and the thickness of lengths of steel pipes two ends removing all controls at 1mm, and the both ends of the surface depth of parallelism is 0.07;
4th step: quenching, lengths of steel pipes after deburring is put into glowing furnace and carries out Quenching Treatment, temperature is 1180 DEG C and is incubated 35min, lengths of steel pipes is taken out, be cooled to room temperature after put into glowing furnace again and carry out secondary quenching, Qa temperature is 850 DEG C, come out of the stove air cooling to room temperature after insulation 45min, and measure hardness by hardness, hardness is HRB63;
5th step: oxide layer, putting into grinding machine to the lengths of steel pipes after quenching carries out except inner surface, the process of outer surface oxide layer, when removing the oxide layer of inner surface, the rotating speed controlling lengths of steel pipes is 1100r/min, the thickness removing inner surface is 0.6mm, when removing the oxide layer of inner surface, the rotating speed controlling lengths of steel pipes is 1450r/min, and the thickness removing inner surface is 1mm;
6th step: cold pressing, the lengths of steel pipes removing oxide layer is put into frock of colding pressing, and the forcing press of 64T carries out punching press, and after punching press, product requirement outward appearance is without scuffing, obtained sleeve blank;
7th step: processing internal tooth, processes its internal tooth by sleeve blank when rotating speed is 2100r/min, after internal tooth machines, and obtained sleeve;
8th step: inspection, testing to sleeve, after the assay was approved, carries out packing, storing.
2. the processing technology of hydraulic coupler sleeve according to claim 1, it is characterized in that, frock of colding pressing described in 6th step comprises upper module, lower module, described upper module is provided with pressing block, positioning sleeve, and stamped groove is provided with on positioning sleeve, described lower module is provided with locating dowel, lower cushion block, and is provided with limited post on lower cushion block.
3. the processing technology of hydraulic coupler sleeve according to claim 2, is characterized in that, described positioning sleeve is set to hollow structure, and is connected with locating dowel by positioning sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511007001.XA CN105397434A (en) | 2015-12-30 | 2015-12-30 | Machining process of hydraulic system pipe joint sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511007001.XA CN105397434A (en) | 2015-12-30 | 2015-12-30 | Machining process of hydraulic system pipe joint sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105397434A true CN105397434A (en) | 2016-03-16 |
Family
ID=55463362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511007001.XA Pending CN105397434A (en) | 2015-12-30 | 2015-12-30 | Machining process of hydraulic system pipe joint sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105397434A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141587A (en) * | 2016-07-29 | 2016-11-23 | 余姚市婉珍五金厂 | A kind of centrifugal sleeve processing technique |
| CN108942106A (en) * | 2018-08-11 | 2018-12-07 | 湖北博士隆科技股份有限公司 | A kind of production and processing method of aluminium set cylinder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456398A (en) * | 2002-05-09 | 2003-11-19 | 李康宁 | Red copper threading pipe connector producing method |
| CN101869928A (en) * | 2010-02-08 | 2010-10-27 | 厦门市育明工程机械有限公司 | Hydraulic steel pipe connector and extrusion forming method and production device thereof |
| CN201913123U (en) * | 2010-03-30 | 2011-08-03 | 陆颂荫 | Cold extruding die for double-ended pipe joint |
| CN102268609A (en) * | 2011-08-10 | 2011-12-07 | 上海海隆石油管材研究所 | Ultrahigh-strength high-toughness drill rod pipe body and heat treatment process thereof |
| CN103667792A (en) * | 2013-12-18 | 2014-03-26 | 福州市仓山区博德新材料科技有限公司 | Zinc aluminum based alloy extruded tube for delay element of industrial delay detonator and preparation method of zinc aluminum based alloy extruded tube |
| WO2015123283A1 (en) * | 2014-02-11 | 2015-08-20 | Schultz Robert W | Systems and methods for extruding tubes |
| CN105177434A (en) * | 2015-09-25 | 2015-12-23 | 天津钢管集团股份有限公司 | Manufacturing method of 125ksi steel grade hydrogen-sulfide-stress-corrosion-resistant oil well pipe |
-
2015
- 2015-12-30 CN CN201511007001.XA patent/CN105397434A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456398A (en) * | 2002-05-09 | 2003-11-19 | 李康宁 | Red copper threading pipe connector producing method |
| CN101869928A (en) * | 2010-02-08 | 2010-10-27 | 厦门市育明工程机械有限公司 | Hydraulic steel pipe connector and extrusion forming method and production device thereof |
| CN201913123U (en) * | 2010-03-30 | 2011-08-03 | 陆颂荫 | Cold extruding die for double-ended pipe joint |
| CN102268609A (en) * | 2011-08-10 | 2011-12-07 | 上海海隆石油管材研究所 | Ultrahigh-strength high-toughness drill rod pipe body and heat treatment process thereof |
| CN103667792A (en) * | 2013-12-18 | 2014-03-26 | 福州市仓山区博德新材料科技有限公司 | Zinc aluminum based alloy extruded tube for delay element of industrial delay detonator and preparation method of zinc aluminum based alloy extruded tube |
| WO2015123283A1 (en) * | 2014-02-11 | 2015-08-20 | Schultz Robert W | Systems and methods for extruding tubes |
| CN105177434A (en) * | 2015-09-25 | 2015-12-23 | 天津钢管集团股份有限公司 | Manufacturing method of 125ksi steel grade hydrogen-sulfide-stress-corrosion-resistant oil well pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141587A (en) * | 2016-07-29 | 2016-11-23 | 余姚市婉珍五金厂 | A kind of centrifugal sleeve processing technique |
| CN108942106A (en) * | 2018-08-11 | 2018-12-07 | 湖北博士隆科技股份有限公司 | A kind of production and processing method of aluminium set cylinder |
| CN108942106B (en) * | 2018-08-11 | 2022-06-24 | 湖北博士隆科技有限公司 | Production and processing method of aluminum sleeve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105397434A (en) | Machining process of hydraulic system pipe joint sleeve | |
| CN103447774B (en) | A kind of spline housing processing technology | |
| CN105033590B (en) | A kind of big flow inserts valve body processing technology | |
| CN104428102A (en) | Car steel ring spoke production and manufacture process and specific mould thereof | |
| CN105921654A (en) | Automobile intake and exhaust flange and forging technology thereof | |
| CN105563058A (en) | Gear box hollow shaft machining method | |
| CN103143901B (en) | Welding method of high-strength prism drill rod for gas drainage from coal bed | |
| CN111015077A (en) | Manufacturing process of handrail tube for rail transit | |
| CN105618858A (en) | Novel air conditioner pipeline perforating device | |
| CN103447773A (en) | Processing technology for fixed seat | |
| CN203184705U (en) | Chip removal device for vertical lathe hole machining | |
| CN103406720A (en) | Flange manufacturing method | |
| CN105583579A (en) | Method for machining semicircular gasket | |
| CN209157666U (en) | Four station turnplate formula drilling and tapping special purpose machine tools | |
| CN111349760A (en) | Quick-change planer tool heat treatment processing technique | |
| CN1160522C (en) | Technology for manufacturing large-diameter thick-wall seamless steel pipe | |
| CN204366508U (en) | A kind of crankshaft speed sensor main body assembly milling clamper | |
| CN104339133A (en) | Central composite stainless cutter strip steel and preparation method thereof | |
| CN102615213B (en) | Machining process for multifunctional folding tool shovel blade | |
| CN110605304A (en) | Production process of aluminum brass thin-wall pipe | |
| CN203356644U (en) | Horizontal type multi-stage machine tool | |
| CN111673395A (en) | Production process of dovetail connecting sleeve of tower crane | |
| CN106064183A (en) | A kind of slow cooling method containing Cr, Mo alloy large-size extruding heavy wall steps of manufacturing blanks | |
| CN209061873U (en) | A kind of red copper tee pipe fitting automatic production line | |
| CN205021995U (en) | Die -cut integral type tool of hot melt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |