CN105773089A - Technological method for manufacturing bullet shell of perforating bullet through combination of hot extrusion and cold drawing - Google Patents
Technological method for manufacturing bullet shell of perforating bullet through combination of hot extrusion and cold drawing Download PDFInfo
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- CN105773089A CN105773089A CN201610193742.XA CN201610193742A CN105773089A CN 105773089 A CN105773089 A CN 105773089A CN 201610193742 A CN201610193742 A CN 201610193742A CN 105773089 A CN105773089 A CN 105773089A
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- hot extrusion
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- perforating
- bullet
- cartridge case
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000001192 hot extrusion Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title abstract description 13
- 238000010622 cold drawing Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000007127 saponification reaction Methods 0.000 claims abstract description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000047 product Substances 0.000 claims description 23
- 229910000754 Wrought iron Inorganic materials 0.000 claims description 18
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 8
- 238000003801 milling Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 5
- 239000006227 byproduct Substances 0.000 claims description 4
- MFXMOUUKFMDYLM-UHFFFAOYSA-L zinc;dihydrogen phosphate Chemical compound [Zn+2].OP(O)([O-])=O.OP(O)([O-])=O MFXMOUUKFMDYLM-UHFFFAOYSA-L 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000000344 soap Substances 0.000 claims description 3
- 239000001117 sulphuric acid Substances 0.000 claims description 3
- 235000011149 sulphuric acid Nutrition 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 abstract description 3
- 239000007769 metal material Substances 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 2
- 238000005246 galvanizing Methods 0.000 abstract 1
- 230000002045 lasting effect Effects 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 238000004080 punching Methods 0.000 description 11
- 238000000641 cold extrusion Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007723 die pressing method Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 102220060547 rs786203080 Human genes 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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
- B23P15/22—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cartridges or like shells
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Metal Extraction Processes (AREA)
Abstract
The invention relates to the technical field of metal material machining, in particular to a technological method for manufacturing a bullet shell of a perforating bullet through the combination of hot extrusion and cold drawing. By means of the technological method, the machining difficulty of the bullet shell of the perforating bullet is lowered, the product quality is improved, and material consumption of the product is reduced. The technological method includes the steps that a steel bar is selected and heated; cake upsetting and extruding forming are conducted; a formed piece is put into a material column to be soaked with hydrochloric acid or sulfuric acid, washed with water and put into a phosphating solution to be soaked; water washing is conducted again, and an obtained piece enters a saponification solution and then is immersed in boiled water and taken out rapidly to be air dried; bottom pressing is conducted through an oil press, the shape and size of an inner hole are formed, the bottom thickness of the product is lathed through a lathe, and residual materials are cut off; an outer circle and an external cone are lathed to be in the proper size, an antiskid groove and the total length are lathed in place at a time, an R groove of the product is milled, a center hole is drilled, and burrs in the hole are removed; and a small hole for pressing of a lasting fuse is drilled, galvanizing is conducted, and inspecting, packaging and delivering are conducted. The technological method is mainly applied to the aspect of production of bullet shells of perforating bullets.
Description
Technical field
The present invention relates to metal material processing technical field, more specifically, relate to a kind of hot extrusion combine with cold stretch make perforating charge cartridge case process.
Background technology
Perforating oil gas well is a key technology in petroleum exploration & development, and the effect of perforating bullet is to be shot through down-hole close the sleeve pipe of target zone, cement sheath and go deep into target zone, forms effective seepage flow siphunculus of target zone and well casing, it is ensured that Oil/gas Well obtains due production capacity.Except the application in petroleum perforation completion, perforating bullet application in other respects is also being found gradually and is using.Perforating charge cartridge case is the main composition parts of perforating bullet, the process technology of perforating charge cartridge case is the key technology producing perforating bullet, its production also experienced by constantly brings forth new ideas and technological revolution so that it is product quality and production yields are all greatly improved, and production cost is greatly reduced.The method producing perforating charge cartridge case at present mainly has hot extrusion blank and two kinds of methods of cold extrusion blank, for 127 perforating charge cartridge cases, the process route of hot extrusion is: rod iron blanking-pier cake, hot extrusion-rough turn cylindrical-Che oral area-brill the end-rough turn endoporus-finish turning circle and outer cone-fixed length-finish turning endoporus-milling R groove-drill centers-Dao inner burr-the pressure of the drill silk hole-zinc-plated；Cold-stamped process route is: rod iron blanking-annealing-acid washing phosphorization-pre-moulding-annealing-acid washing phosphorization-Contoured squeeze-Che oral area-finish turning justifies and outer cone-fixed length-milling R groove-drill centers-Dao inner burr-the pressure of the drill silk hole-and zinc-plated.Two kinds of techniques are compared, and hot extrusion technique material therefor is 45# steel, and its hardness is at about HB150-170.Because perforating charge cartridge case to have certain hardness, shell case outer surface is caused to damage to be unlikely to making shell case move back mould difficulty due to deformation when pressing, perforation is also had a certain impact by the hardness of shell case simultaneously, shell case hardness is more hard in principle wears deep more good to perforation, and this processing is basically 45# green strength.Its advantage is that production equipment is simple, production efficiency is high, Mold Making is simple, and stock utilization is about 65%, and required specifications of raw materials kind is few, and perforating charge cartridge case blank can be obtained by the pier cake before hot extrusion, and buying steel are easy.Shortcoming is that frame endoporus is high less than punching precision, and process velocity does not have punching press fast, and stock utilization is high less than punching press, it is necessary to lathe, Ren Yuanduo, and cutter consumption is big.Material used by cold-extrusion technology is 15# or 20# steel, and its hardness can arrive about HB140-160 by after flow harden.Its advantage is that inner hole precision is high, and stock utilization is high, can reach about 70%.Its shortcoming is that required specifications of raw materials is wide in variety, size according to perforating charge cartridge case, it is necessary to preparing the steel of various model, buying steel are difficult, part annealing time is long, affecting production efficiency, the hydraulic press of required more than 600 tons, the Mold Making cycle is long, and manufacture difficulty is big, require tight, can not process at the shell case of more than 48mm for perforating charge cartridge case external diameter, be unfavorable for multi-item production.Therefore, it is necessary to deficiency existing in prior art is improved.
Summary of the invention
In order to overcome in prior art existing deficiency, it is provided that a kind of hot extrusion combines with cold stretch the process of making perforating charge cartridge case, this process decreases the difficulty of processing of perforating charge cartridge case, improves product quality, reduces the material consumption of product.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is:
nullA kind of hot extrusion combines with cold extrusion and makes the process of perforating charge cartridge case，Choose rod iron，It is heated to 700 DEG C-900 DEG C，Then it is placed on punch press to carry out pier cake extruded，Produce perforating bullet blank basic configuration，Put into material hurdle，With hydrochloric acid or soak with sulphuric acid 20min-60min，Washing，Put into immersion 15min-25min in Phosphating Solution，Temperature is 40 DEG C-60 DEG C，Wash again，Enter saponification liquor，Soak when 30 DEG C-40 DEG C for 20min-30min，It is then immersed in boiled water taking out rapidly air-dry，Product surface forms saponification film，The hydraulic press adopting 100-200 ton carries out the pressure end，Eliminate bottom pockmark and increase bottom hardness，Internal via shape and size are shaped by the hydraulic press adopting 100-200 ton，With lathe by product base thickness car out，With location, bottom, unnecessary material is cut away at oral area，Then with Internal hole positioning by cylindrical and outer cone car to suitable dimension，Digit Control Machine Tool one train is used to put in place anti-slip tank and overall length again，With milling machine, the R groove of product is milled out，With drilling machine, centre bore is got out and cleaning hole inner burr，Then the aperture of pressure fuse cord is got out，Zinc-plated，Test package dispatches from the factory.
Described rod iron selects 45# steel or 20# steel, adopts sawing machine or rod iron cutting machine by its scale.
Adopt main frequency furnace that rod iron is heated to 800 DEG C.
Rod iron is put on the punch press of 200 tons and carries out pier cake.
Described Phosphating Solution is that zinc dihydrogen phosphate and zinc nitrate are by the 1:3 mixed liquor putting in water.
Described saponification liquor is that industry soap adds water the solution dissolved in a heated state.
Compared with prior art the present invention is had the beneficial effect that
The product hardness that the present invention produces is up to about HB180-240, about stock utilization 75%-80%, and Mold Making is simple, and after rough turn quenching, numerically controlled lathe can be processed voluntarily, and the speed of production of product is fast, and endoporus does not need to process the quality namely with cold extrusion processing.The present invention has hot extrusion and the advantage of two kinds of techniques of cold stretch simultaneously, can process the perforating charge cartridge case of arbitrary size.For many years to the stretching of 45# steel, extruding be all technical forbidden zone, the present invention breaches technical bottleneck, completes extruding and the stretching of the medium carbon steel such as 45# steel, 35# steel.
Accompanying drawing explanation
Below by accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is that the present invention presses bottom structure schematic diagram；
Fig. 2 is stretching structure schematic diagram of the present invention；
Fig. 3 is stretching die structural representation of the present invention.
In figure: 1 be pressure end cope match-plate pattern, 2 be pressure end red seat, 3 be pressure end punching pin, 4 be product, 5 be pressure bed die, 6 for stretching cope match-plate pattern, 7 for stretching red seat, 8 for stretching punching pin, 9 be stretching die pressing plate, 11 be stretching die, 12 be die shoe, 13 for entering die orifice, 14 for entering modular angle, 15 be knuckle, 16 be work strip, 17 for going out modular angle, 18 for going out die orifice.
Detailed description of the invention
The invention will be further described in conjunction with accompanying drawing for example below.
1, blanking: select the rod iron of different-diameter according to the difference of product, the rod iron trade mark selects 45# steel or 20# steel, adopts sawing machine or rod iron cutting machine scale.
2, rod iron heating: use main frequency furnace that the rod iron material of scale is heated to about 800 DEG C.
3, hot extrusion: it is extruded that the rod iron of heating carries out pier cake on the punch press of 200 tons, produces the basic configuration of perforating bullet blank.
4, saponification: the perforating bullet blank materials hurdle after hot extrusion is installed, with hydrochloric acid or soak with sulphuric acid 20-60 minute, then wash, put in Phosphating Solution and soak about 20 minutes, Phosphating Solution is zinc dihydrogen phosphate with zinc nitrate by, in 1:3 mixing water, working under 40 DEG C of-60 DEG C of conditions；Then washing enters saponification liquor, and saponification liquor is to add water the solution dissolved in a heated state with industrial soap, works 20-30 minute at 30 DEG C-40 DEG C, the product good by saponification, immersing in boiled water and propose rapidly, dry up in fan, product surface is the formation of saponification film.
5, the pressure end: adopt the hydraulic press of 100-200 ton, it is therefore an objective to eliminate pockmark bottom the product brought due to hot pressing moulding, bottom increases hardness.
6, stretch: adopt the hydraulic press of 100-200 ton, mainly internal via shape and size are shaped.
7, base thickness is determined: with engine lathe by product base thickness car out.
8, overall length is just determined: cut away at oral area by unnecessary material with location, bottom with engine lathe, the general surplus staying 1-0.8mm to finish turning overall length.
9, turning and outer cone: with numerically controlled lathe with Internal hole positioning by cylindrical and outer cone car to product size.
10, overall length is determined: put in place with the numerically controlled lathe anti-slip tank by product and overall length one train.
11, milling R groove: the R groove of product is milled out with milling machine.
12, drill centers: centre bore is got out with drilling machine.
13, the burr of falling centre bore: the centre bore inner burr being drilled is outwelled with drilling machine.
14, aperture is bored: get out the aperture of pressure fuse cord with drilling machine.
15, zinc-plated.
16, test package dispatches from the factory.
Below in conjunction with accompanying drawing, the pressure end, stretching are described further.
The pressure end, mainly eliminates bottom pockmark, increases bottom hardness.As shown in Figure 1,1 for pressure end cope match-plate pattern, 2 for pressure end red seat, 3 for pressure end punching pin, 4 be product, 5 for pressure bed die, press end punching pin design to amplify 0.1mm-1mm, material selection Cr12 than stretching, heat treatment hardness is HRC58-62, and it is 0.4-0.8 that surface finish processes its roughness.Pressure bed die is pressed product blank bottom size and is set, and pressure is set in 50-180 ton according to the size of product, uses pressure backhaul to control.
Stretch mainly sizing internal via shape and size.As shown in Figure 2,6 for stretch cope match-plate pattern, 7 for stretch red seat, 8 for stretch punching pin, 9 be stretching die pressing plate, 4 for product, 11 for stretching die, 12 be die shoe, the design stretching punching pin amplifies 0.2mm-0.8mm than molded dimension in product, material selection Cr12, heat treatment hardness is HRC58-62, and it is 0.4-0.8 that surface finish processes its roughness.The deflection stretched is between 12%-20%, and for the deflection of mild steel at 20%-40%, deflection is the key determining to stretch success or failure, and the excessive easy fracture of deflection, the too little endoporus die cavity of deflection can not meet.
The design of stretching die is also the key of the present invention.As it is shown on figure 3,13 for entering die orifice, 14 for entering modular angle, 15 be knuckle, 16 be work strip, 17 for going out modular angle, 18 for going out die orifice.Material adopts T10A cold work die steel, heat treatment HRC50-60, and work strip is polished skidding with entering modular angle surface, and roughness is 0.4-0.8.Enter die diameter more than workpiece 5mm-15mm, enter die orifice and be typically between 12 °-16 °.Knuckle takes R4mm, and work strip, between 5mm-15mm, goes out modular angle between 12 °-15 °, goes out die diameter with to enter die diameter essentially identical.The workpiece material returned utilizes hydraulic press backhaul, below work strip and go out and be scraped between die orifice.
Entering die orifice by putting into stretching die through the workpiece at the bottom of overvoltage, punching pin press-in workpiece passes through into die orifice, and internal via shape and size are shaped by work strip, complete the ironing of workpiece.After workpiece completely disengages from work strip, punch press starts backhaul, and workpiece passes through die orifice, and cope match-plate pattern is directly entered in charging box after completing automatic material returning.
In drawing process, phosphatization also plays very crucial effect, the surface quality in mold use life-span, product is played vital effect by it, the Phosphating Solution that the present invention uses is that zinc dihydrogen phosphate is blended in water with zinc nitrate by 1:3 and dissolves, work under 40 °-50 °.
The present invention pressure end, stretching, phosphatization instead of the brill end, rough turn endoporus, finish turning endoporus.When normally producing, rough turn endoporus needs 3-5 people, finish turning endoporus 3-5 people, boring needs 1 people, and the present invention presses the end, stretch, phosphatization needs 4 people altogether, hydraulic press 1-2 platform, lathe 6-10 platform can be saved, produce 1,000,000 launch hole bullet shell cases per year to calculate, cutter unit up to ten thousand can be saved, saving steel about 120 tons, the speed of punching press simultaneously is far longer than the speed that machine adds, the quality of product is also far longer than the quality that machine adds, from manpower, material resources, financial resources have had substantial amounts of saving, improve the competitiveness of enterprise, particularly some perforating bullet factory is distinctly claimed perforating charge cartridge case must be cold stretch or cold extrusion.
Claims (6)
- null1. a hot extrusion combines with cold stretch and makes the process of perforating charge cartridge case，It is characterized in that: choose rod iron，It is heated to 700 DEG C-900 DEG C，Then it is placed on punch press to carry out pier cake extruded，Produce perforating bullet blank basic configuration，Put into material hurdle，With hydrochloric acid or soak with sulphuric acid 20min-60min，Washing，Put into immersion 15min-25min in Phosphating Solution，Temperature is 40 DEG C-60 DEG C，Wash again，Enter saponification liquor，Soak when 30 DEG C-40 DEG C for 20min-30min，It is then immersed in boiled water taking out rapidly air-dry，Product surface forms saponification film，The hydraulic press adopting 100-200 ton carries out the pressure end，Eliminate bottom pockmark and increase bottom hardness，Internal via shape and size are shaped by the hydraulic press adopting 100-200 ton，With lathe by product base thickness car out，With location, bottom, unnecessary material is cut away at oral area，Then with Internal hole positioning by cylindrical and outer cone car to suitable dimension，Digit Control Machine Tool one train is used to put in place anti-slip tank and overall length again，With milling machine, the R groove of product is milled out，With drilling machine, centre bore is got out and cleaning hole inner burr，Then the aperture of pressure fuse cord is got out，Zinc-plated，Test package dispatches from the factory.
- 2. a kind of hot extrusion according to claim 1 combines with cold stretch and makes the process of perforating charge cartridge case, it is characterised in that: described rod iron selects 45# steel or 20# steel, adopts sawing machine or rod iron cutting machine by its scale.
- 3. a kind of hot extrusion according to claim 1 combines with cold stretch and makes the process of perforating charge cartridge case, it is characterised in that: adopt main frequency furnace that rod iron is heated to 800 DEG C.
- 4. a kind of hot extrusion according to claim 1 combines with cold stretch and makes the process of perforating charge cartridge case, it is characterised in that: rod iron is put on the punch press of 200 tons and carries out pier cake.
- 5. a kind of hot extrusion according to claim 1 combines with cold stretch and makes the process of perforating charge cartridge case, it is characterised in that: described Phosphating Solution is that zinc dihydrogen phosphate and zinc nitrate are by the 1:3 mixed liquor putting in water.
- 6. a kind of hot extrusion according to claim 1 combines with cold stretch and makes the process of perforating charge cartridge case, it is characterised in that: described saponification liquor is that industry soap adds water the solution dissolved in a heated state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610193742.XA CN105773089B (en) | 2016-03-31 | 2016-03-31 | A kind of hot extrusion is combined the process of making perforating charge cartridge case with cold stretch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610193742.XA CN105773089B (en) | 2016-03-31 | 2016-03-31 | A kind of hot extrusion is combined the process of making perforating charge cartridge case with cold stretch |
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| CN105773089A true CN105773089A (en) | 2016-07-20 |
| CN105773089B CN105773089B (en) | 2018-01-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055838A (en) * | 2018-09-11 | 2018-12-21 | 湖南工业大学 | A kind of high tough aluminum alloy materials and its application in terms of preparing shell case |
| CN113857772A (en) * | 2021-08-27 | 2021-12-31 | 隆昌山川机械有限责任公司 | Cartridge manufacturing method and die based on cold drawing |
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| CN102363260A (en) * | 2011-08-19 | 2012-02-29 | 江苏森威精锻有限公司 | Hot-cold combined forming method for star-shaped sleeve of constant velocity universal joint |
| CN103286534A (en) * | 2012-07-31 | 2013-09-11 | 宁波圣菲机械制造有限公司 | Perforation cartridge case manufacturing process |
| CN104476146A (en) * | 2014-10-30 | 2015-04-01 | 江苏威鹰机械有限公司 | Production process of automotive middle-rear axle transmission meshing sleeve |
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2016
- 2016-03-31 CN CN201610193742.XA patent/CN105773089B/en active Active
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| US3349459A (en) * | 1964-10-19 | 1967-10-31 | Fed Cartridge Corp | Method of making plastic tubes |
| CN2686756Y (en) * | 2004-02-08 | 2005-03-23 | 大庆石油管理局射孔弹厂 | Perforating bullet case blank precision cold-extrusion die |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055838A (en) * | 2018-09-11 | 2018-12-21 | 湖南工业大学 | A kind of high tough aluminum alloy materials and its application in terms of preparing shell case |
| CN113857772A (en) * | 2021-08-27 | 2021-12-31 | 隆昌山川机械有限责任公司 | Cartridge manufacturing method and die based on cold drawing |
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| CN105773089B (en) | 2018-01-09 |
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Effective date of registration: 20230407 Address after: 044399 Intersection of Zhenxing Street and Chuangye Road in Xinhu Industrial Park, Pinglu County, Yuncheng City, Shanxi Province Patentee after: Shanxi Xinhuan Precision Manufacturing Co.,Ltd. Address before: 044300 West Hanyao Village, Maojin Economic Development Zone, Pinglu County, Yuncheng City, Shanxi Province Patentee before: SHANXI XINHUAN POWDER METALLURGY Co.,Ltd. |