CN107217203A - A kind of preparation method of steel wheel hub cold punching die - Google Patents
A kind of preparation method of steel wheel hub cold punching die Download PDFInfo
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- CN107217203A CN107217203A CN201710237386.1A CN201710237386A CN107217203A CN 107217203 A CN107217203 A CN 107217203A CN 201710237386 A CN201710237386 A CN 201710237386A CN 107217203 A CN107217203 A CN 107217203A
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- punching die
- wheel hub
- cold punching
- steel wheel
- preparation
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
-
- 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
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/032—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat Treatment Of Articles (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of preparation method of steel wheel hub cold punching die, comprise the following steps：The production mould casting that required dimensions is made with after mold materials at high temperature mixed smelting, casting in production cold punching die；Casting is processed in strict accordance with drawing, wheel hub cold punching die is obtained；Salt-mixture is placed in internal heat type crucible, after high-temperature heating fusing, fused solution is incubated to obtain；Using cleaning fluid by the surface clean of wheel hub cold punching die it is clean after, high temperature preheating obtains preheated mold；Preheated mold is added in insulation fused solution, is quenched successively and temper after immersion, is finally naturally cooled to room temperature and produce.Compared to prior art, the present invention has raw material and processing and manufacturing cost low, gained cold punching die toughness is strong, the advantages such as service life length, steel wheel hub cold punching die obtained by the present invention is used for the production of steel wheel hub, high with production efficiency, the high advantage of product qualified rate is worthy to be popularized.
Description
Technical field
The present invention relates to mould preparing technical field, more particularly to a kind of preparation method of steel wheel hub cold punching die.
Background technology
Wheel hub is the important enforcement part of automobile, and vehicle traveling process can produce horizontal and vertical load, while with drive
Kinetic moment braking moment etc., wheel hub needs to bear quite a few load.With developing rapidly for automobile industry, to the firm of wheel hub
Degree, intensity requirement also more and more higher.Steel wheel hub due to having great advantage in terms of cost and security than aluminium alloy wheel hub,
Therefore it is widely used in truck.In the prior art, the conventional mode of production of steel wheel hub is by cold punching die
Alloy-steel plate is stamped to form under pressure, the service life of cold punching die is the important of steel wheel hub mass production
Influence factor.Existing cold punching die is more using Cr12MoV mould steel as raw material, the prices of raw materials and processing and manufacturing cost compared with
Height, and due to the limitation of processing technology, gained cold punching die is when bearing immense pressure, and deformation quantity is larger, the steel of production
Ratch hub dimensional accuracy is not up to standard, and product qualification rate is relatively low, and cold punching die service life is limited.Based on above statement, this hair
It is bright to propose a kind of preparation method of steel wheel hub cold punching die.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of steel wheel hub cold stamping proposed
The preparation method of mould.
A kind of preparation method of steel wheel hub cold punching die, comprises the following steps：
S1, the life that required dimensions is made with after mold materials at high temperature mixed smelting, casting in production cold punching die
Produce mould casting；
S2, by required dimensions, the processing drawing of the wheel hub cold punching die of standard is drawn using CAD software, by step S1
The casting of middle gained, is processed in strict accordance with drawing, obtains wheel hub cold punching die；
S3, salt-mixture is placed in internal heat type crucible, after high-temperature heating fusing, stirred and mixed with 220~280r/min rotating speed
Uniformly, it is incubated to obtain fused solution；
S4, using cleaning fluid by step S2 gained wheel hub cold punching die surface clean it is clean after, with 70~100 DEG C
5~10min of hot water injection, preheats 1~3h, obtains preheated mold at a high temperature of being subsequently placed in 420~520 DEG C；
S5, the preheated mold of gained in step S4 is added in step S3 in the insulation fused solution of gained, and ensures fused solution
Taken out after flooding preheated mold, 5~9h of immersion completely, quenched successively and temper, finally naturally cool to room temperature i.e.
.
It is preferred that, it is that mold materials are comprised the following raw materials by weight percent in the step S1：C 0.2~0.5%,
Mn 1~1.5%, Cu 3.1~3.7%, SiC 3~4.8%, P 0.05~0.15%, RE 1~2%, surplus are Fe.
It is preferred that, it is that mold materials are comprised the following raw materials by weight percent in the step S1：C 0.3%、Mn
1.2%th, Cu 3.4%, SiC 4%, P 0.1%, RE 1.5%, surplus are Fe.
It is preferred that, the salt-mixture in the step S3 is that mass ratio is 3~3.8:2~3:2~2.4:1:0.7~1 chlorine
Change the salt-mixture of barium, calcium carbonate, silica, chromium sulfate and alundum (Al2O3).
It is preferred that, the cleaning fluid in the step S4 is gasoline, sodium carbonate, sodium metasilicate, neopelex and second
The mixed liquor of alcohol, and by weight percentage, cleaning fluid include gasoline 23~28%, sodium carbonate 7~11%, sodium metasilicate 5~12%,
Neopelex 1~3%, surplus are ethanol.
It is preferred that, the cleaning fluid in the step S4 is gasoline, sodium carbonate, sodium metasilicate, neopelex and second
The mixed liquor of alcohol, and by weight percentage, cleaning fluid includes gasoline 25%, sodium carbonate 9%, sodium metasilicate 8%, detergent alkylate sulphur
Sour sodium 2%, surplus are ethanol.
It is preferred that, quenching condition in the step S5 is at 980~1150 DEG C, to be incubated 2~4h；Tempered condition is 380
At~440 DEG C, 3~5h is incubated.
A kind of preparation method of steel wheel hub cold punching die proposed by the present invention, technique is simple to operation, raw materials used
It is nontoxic, free from environmental pollution and with low cost, environment will not be polluted in preparation process, gained steel wheel hub Cold pressing die
Mechanical property, rigidity and the hardness of tool are high, and die surface wearability, corrosion resistance are good, and compared to prior art, the present invention has
Raw material and processing and manufacturing cost are low, and gained cold punching die toughness is strong, the advantage such as service life length, present invention gained
Steel wheel hub cold punching die be used for the production of steel wheel hub, product qualified rate high advantage high with production efficiency is worth
Promote.
Embodiment
The present invention is made with reference to specific embodiment further to explain.
Embodiment one
A kind of preparation method of steel wheel hub cold punching die proposed by the present invention, comprises the following steps：
S1, prepare mold materials, by weight percentage, including C 0.2%, Mn 1.2%, Cu 3.4%, SiC 3%, P 0.05%,
RE 1%, surplus are Fe, and by production cold punching die with after mold materials at high temperature mixed smelting, required size is made in casting
The production mould casting of specification；
S2, by required dimensions, the processing drawing of the wheel hub cold punching die of standard is drawn using CAD software, by step S1
The casting of middle gained, is processed in strict accordance with drawing, obtains wheel hub cold punching die；
S3, by mass ratio be 3:2:2:1:0.8 barium chloride, calcium carbonate, silica, the salt-mixture of chromium sulfate and alundum (Al2O3)
It is placed in internal heat type crucible, after high-temperature heating fusing, is uniformly mixed with 220r/min rotating speed, is incubated to obtain fused solution；
S4, cleaning fluid is prepared, by weight percentage, including gasoline 24%, sodium carbonate 8%, sodium metasilicate 5%, DBSA
Sodium 1%, surplus be ethanol, using cleaning fluid by step S2 gained wheel hub cold punching die surface clean it is clean after, with 78
DEG C hot water injection 9min, preheat 3h at a high temperature of being subsequently placed in 420 DEG C, obtain preheated mold；
S5, the preheated mold of gained in step S4 is added in step S3 in the insulation fused solution of gained, and ensures fused solution
Taken out after flooding preheated mold, immersion 7h completely, successively at 1000 DEG C, be incubated 3h, then after water cooling to room temperature, be placed in 400
At DEG C, 4h is incubated, room temperature is finally naturally cooled to and produces.
Embodiment two
A kind of preparation method of steel wheel hub cold punching die proposed by the present invention, comprises the following steps：
S1, preparation mold materials, by weight percentage, including C 0.4%, Mn 1.5%, Cu 3.3%, SiC 4.2%, P
0.1%th, RE 1.5%, surplus are Fe, and by production cold punching die with after mold materials at high temperature mixed smelting, institute is made in casting
Need the production mould casting of dimensions；
S2, by required dimensions, the processing drawing of the wheel hub cold punching die of standard is drawn using CAD software, by step S1
The casting of middle gained, is processed in strict accordance with drawing, obtains wheel hub cold punching die；
S3, by mass ratio be 3.5:2.2:2.4:1:1 barium chloride, calcium carbonate, silica, chromium sulfate and alundum (Al2O3) it is mixed
Close salt to be placed in internal heat type crucible, after high-temperature heating fusing, be uniformly mixed, be incubated with 220~280r/min rotating speed
Fused solution；
S4, cleaning fluid is prepared, by weight percentage, including gasoline 25%, sodium carbonate 9%, sodium metasilicate 6%, DBSA
Sodium 1.8%, surplus be ethanol, using cleaning fluid by step S2 gained wheel hub cold punching die surface clean it is clean after, use
80 DEG C of hot water injection 8min, preheats 2h at a high temperature of being subsequently placed in 480 DEG C, obtains preheated mold；
S5, the preheated mold of gained in step S4 is added in step S3 in the insulation fused solution of gained, and ensures fused solution
Taken out after flooding preheated mold, immersion 6h completely, successively at 980 DEG C, be incubated 4h, then after water cooling to room temperature, be placed in 440 DEG C
Under, 3h is incubated, room temperature is finally naturally cooled to and produces.
Embodiment three
A kind of preparation method of steel wheel hub cold punching die proposed by the present invention, comprises the following steps：
S1, preparation mold materials, by weight percentage, including C 0.5%, Mn 1.2%, Cu 3.5%, SiC 4.5%, P
0.12%th, RE 2%, surplus are Fe, and by production cold punching die with after mold materials at high temperature mixed smelting, institute is made in casting
Need the production mould casting of dimensions；
S2, by required dimensions, the processing drawing of the wheel hub cold punching die of standard is drawn using CAD software, by step S1
The casting of middle gained, is processed in strict accordance with drawing, obtains wheel hub cold punching die；
S3, by mass ratio be 3.8:2.5:2.2:1:0.8 barium chloride, calcium carbonate, silica, chromium sulfate and alundum (Al2O3)
Salt-mixture is placed in internal heat type crucible, after high-temperature heating fusing, is uniformly mixed with 250r/min rotating speed, being incubated to melt
Liquid；
S4, cleaning fluid is prepared, by weight percentage, including gasoline 28%, sodium carbonate 10%, sodium metasilicate 9%, detergent alkylate sulphur
Sour sodium 2%, surplus be ethanol, using cleaning fluid by step S2 gained wheel hub cold punching die surface clean it is clean after, use
100 DEG C of hot water injection 5min, preheats 1h at a high temperature of being subsequently placed in 520 DEG C, obtains preheated mold；
S5, the preheated mold of gained in step S4 is added in step S3 in the insulation fused solution of gained, and ensures fused solution
Taken out after flooding preheated mold, immersion 9h completely, successively at 1150 DEG C, be incubated 2h, then after water cooling to room temperature, be placed in 380
At DEG C, 5h is incubated, room temperature is finally naturally cooled to and produces.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (7)
1. a kind of preparation method of steel wheel hub cold punching die, it is characterised in that comprise the following steps：
S1, the life that required dimensions is made with after mold materials at high temperature mixed smelting, casting in production cold punching die
Produce mould casting；
S2, by required dimensions, the processing drawing of the wheel hub cold punching die of standard is drawn using CAD software, by step S1
The casting of middle gained, is processed in strict accordance with drawing, obtains wheel hub cold punching die；
S3, salt-mixture is placed in internal heat type crucible, after high-temperature heating fusing, stirred and mixed with 220~280r/min rotating speed
Uniformly, it is incubated to obtain fused solution；
S4, using cleaning fluid by step S2 gained wheel hub cold punching die surface clean it is clean after, with 70~100 DEG C
5~10min of hot water injection, preheats 1~3h, obtains preheated mold at a high temperature of being subsequently placed in 420~520 DEG C；
S5, the preheated mold of gained in step S4 is added in step S3 in the insulation fused solution of gained, and ensures fused solution
Taken out after flooding preheated mold, 5~9h of immersion completely, quenched successively and temper, finally naturally cool to room temperature i.e.
.
2. a kind of preparation method of steel wheel hub cold punching die according to claim 1, it is characterised in that the step
It is that mold materials are comprised the following raw materials by weight percent in S1：C 0.2~0.5%, Mn 1~1.5%, Cu 3.1~3.7%,
SiC 3~4.8%, P 0.05~0.15%, RE 1~2%, surplus are Fe.
3. a kind of preparation method of steel wheel hub cold punching die according to claim 1, it is characterised in that the step
It is that mold materials are comprised the following raw materials by weight percent in S1：C 0.3%、Mn 1.2%、Cu 3.4%、SiC 4%、P
0.1%th, RE 1.5%, surplus are Fe.
4. a kind of preparation method of steel wheel hub cold punching die according to claim 1, it is characterised in that the step
Salt-mixture in S3 is that mass ratio is 3~3.8:2~3:2~2.4:1:0.7~1 barium chloride, calcium carbonate, silica, sulfuric acid
The salt-mixture of chromium and alundum (Al2O3).
5. a kind of preparation method of steel wheel hub cold punching die according to claim 1, it is characterised in that the step
Cleaning fluid in S4 is gasoline, the mixed liquor of sodium carbonate, sodium metasilicate, neopelex and ethanol, and percentage by weight
Than meter, cleaning fluid includes gasoline 23~28%, sodium carbonate 7~11%, sodium metasilicate 5~12%, neopelex 1~3%, remaining
Measure as ethanol.
6. a kind of preparation method of steel wheel hub cold punching die according to claim 1, it is characterised in that the step
Cleaning fluid in S4 is gasoline, the mixed liquor of sodium carbonate, sodium metasilicate, neopelex and ethanol, and percentage by weight
Than meter, it is ethanol that cleaning fluid, which includes gasoline 25%, sodium carbonate 9%, sodium metasilicate 8%, neopelex 2%, surplus,.
7. a kind of preparation method of steel wheel hub cold punching die according to claim 1, it is characterised in that the step
Quenching condition in S5 is at 980~1150 DEG C, to be incubated 2~4h；Tempered condition be 380~440 DEG C at, be incubated 3~5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710237386.1A CN107217203A (en) | 2017-04-12 | 2017-04-12 | A kind of preparation method of steel wheel hub cold punching die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710237386.1A CN107217203A (en) | 2017-04-12 | 2017-04-12 | A kind of preparation method of steel wheel hub cold punching die |
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| CN107217203A true CN107217203A (en) | 2017-09-29 |
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| CN201710237386.1A Pending CN107217203A (en) | 2017-04-12 | 2017-04-12 | A kind of preparation method of steel wheel hub cold punching die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107937867A (en) * | 2017-11-18 | 2018-04-20 | 蚌埠市宏大制药机械有限公司 | A kind of surface treatment method of metal stamping die |
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| CN107937867A (en) * | 2017-11-18 | 2018-04-20 | 蚌埠市宏大制药机械有限公司 | A kind of surface treatment method of metal stamping die |
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Application publication date: 20170929 |
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