CN106807845A - A kind of cold stamping auto parts and components mould - Google Patents
A kind of cold stamping auto parts and components mould Download PDFInfo
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- CN106807845A CN106807845A CN201611230681.6A CN201611230681A CN106807845A CN 106807845 A CN106807845 A CN 106807845A CN 201611230681 A CN201611230681 A CN 201611230681A CN 106807845 A CN106807845 A CN 106807845A
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- parts
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- cold stamping
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- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/08—Cellulose derivatives
- C09D101/26—Cellulose ethers
- C09D101/28—Alkyl ethers
- C09D101/286—Alkyl ethers substituted with acid radicals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Detergent Compositions (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention belongs to cold punching die preparing technical field, and in particular to a kind of cold stamping auto parts and components mould, it is 200 400 μm, oxide layer of the raw material comprising samarium oxide with weight than the rutile titanium dioxide for 0.3% doping that surface is provided with a layer thickness.The present invention has advantages below compared to existing technology：The cold punching die of working process in the present invention, make nano coating strong with die surface adhesive force, gained coating has hardness high, the strong advantage of wearability, the toughness of mould is also effectively increased simultaneously, improve its impact resistance ability, maximum heat treatment deflection is less than 0.06%, the addition of the materials such as silica granule makes mould to keep certain absorbability to lubricating oil in the course of the work, it is set to keep high-lubricity, so as to ensure the precision of stamping products, reliability and stability, improve the quality product rate of converted products, the service life of cold punching die is set to be enhanced about more than once.
Description
Technical field
The invention belongs to cold punching die preparing technical field, and in particular to a kind of cold stamping auto parts and components mould.
Background technology
Cold punching die is on forcing press, deformation force to be applied at ambient temperature, so as to obtain definite shape, chi
The special tool(s) of the product parts of very little and performance, stamping mold will withstand shocks, vibrate, rubbing when working, high pressure and stretching, curved
The loads such as torsion, or even work at a higher temperature（Such as cold extrusion）, condition of work is complicated, easily occur abrasion, fatigue, fracture,
The phenomenons such as deformation, therefore, the requirement to working parts of dies material is higher than common parts, with the development of auto industry, people
Demand to automobile is growing, wherein influenceing the biggest factor of production, is how to select die materials, with right in production
How the raising of auto parts performance requirement, improve precision, the reliability and stability of stamping products, while ensureing product strong
Avoid damaging under strong impulsive force, be the problem for being badly in need of research now.
The content of the invention
The purpose of the present invention is directed to existing problem, there is provided a kind of cold stamping auto parts and components mould.
The present invention is achieved by the following technical solutions：A kind of cold stamping auto parts and components mould, surface is provided with one
Thickness degree is 200-400 μm, oxide layer of the raw material comprising samarium oxide with weight than the rutile titanium dioxide for 0.3% doping,
Its processing method is comprised the following steps；
（1）In the mould it is compressing after, after gained mould is through degreasing, pickling, be put into four fourths that mass concentration is 4-6%
In base tin acetone soln, after closed processes 20-25 minutes, take out and use deionized water rinsing 35-40 minutes；
（2）The mould after above-mentioned treatment is brushed with surface conditioning agent, surface conditioning agent by following weight portion raw material system
Into：Ammonium hexavanadate 6-10 parts, acetylacetone,2,4-pentanedione 4-6 parts, methyl isopropyl Ketone 2-4 parts, fentin acetate 1-3 parts, quality it is dense
It is aqueous hydrochloric acid solution 35-40 parts of 4-7% to spend, after the completion of brushing, the spontaneous curing under normal temperature condition；
（3）By weight, samarium oxide is taken with weight than rutile titanium dioxide 8-12 parts, silica granule for 0.3% doping
4-8 parts, strontium carbonate 2-3 parts, carboxymethylcellulose calcium 0.2-0.6 parts, 0.2-0.4 parts of Mercapto-phenyl polysilsesquioxane, caddy
After 0.8-1.5 parts of mixing, it is the ethanol solution of 40-45% to add mass concentration, the solid phase of compound and liquid is in a ratio of 2:1, send
In entering ball mill, in ratio of grinding media to material 6:1st, ball milling speed is ball milling 20-24 hours under conditions of 1500 turns/hour, to obtain nano powder
Material, crosses 100 mesh sieves；
（4）By nanopowder obtained above by spray gun spraying in step（2）Die surface after treatment, completes in spraying
Afterwards, 18-25 minutes is incubated under conditions of 240-260 DEG C, makes powder coating solidification, obtained final product.
As further improvement of these options, the step（1）The middle raw material that will prepare cold punching die are through matching somebody with somebody
It is fitted into after system, ball milling, drying in the mould for making cold punching die, it is compressing on forcing press.
Used as further improvement of these options, the surface conditioning agent is used after raw material mixing and shaken through superelevation sound wave
Swing 20-25 minutes and obtain.
Used as further improvement of these options, the particle diameter of the silica granule is to be determined with laser diffractometry, is obtained
Particle diameter is in 0.8-2 μm and 3.5-4 μ ms in particle diameter distribution.
As further improvement of these options, the step（4）Spraying method is electrostatic spraying.
The present invention has advantages below compared to existing technology：The cold punching die of working process in the present invention, applies nanometer
Layer is strong with die surface adhesive force, and gained coating has the advantages that hardness is high, wearability is strong, while also effectively increasing mould
Toughness, improves its impact resistance ability, and maximum heat treatment deflection is less than 0.06%, and the addition of the material such as silica granule makes mould exist
Certain absorbability can be kept to lubricating oil, it is kept high-lubricity, so as to ensure the essence of stamping products in the course of work
Degree, reliability and stability, improve the quality product rate of converted products, the service life of cold punching die is enhanced about more than once.
Specific embodiment
Embodiment 1
A kind of cold stamping auto parts and components mould, surface be provided with a layer thickness for 300 μm, raw material comprising samarium oxide with weight ratio
It is the oxide layer of the rutile titanium dioxide of 0.3% doping, its processing method is comprised the following steps；
（1）In the mould it is compressing after, after gained mould is through degreasing, pickling, be put into four fourths that mass concentration is 4-6%
In base tin acetone soln, after closed processes 20-25 minutes, take out and use deionized water rinsing 35-40 minutes；
（2）The mould after above-mentioned treatment is brushed with surface conditioning agent, surface conditioning agent by following weight portion raw material system
Into：6 parts of ammonium hexavanadate, 6 parts of acetylacetone,2,4-pentanedione, 2 parts of methyl isopropyl Ketone, 3 parts of fentin acetate, mass concentration are 4-7%'s
35 parts of aqueous hydrochloric acid solution, after the completion of brushing, the spontaneous curing under normal temperature condition；
（3）By weight, samarium oxide is taken with weight than 12 parts of rutile titanium dioxide, the silica granule 4 for 0.3% doping
After part, 2 parts of strontium carbonate, 0.2 part of carboxymethylcellulose calcium, 0.4 part of Mercapto-phenyl polysilsesquioxane, 0.8 part of mixing of caddy,
The ethanol solution for adding mass concentration to be 40%, makes the solid phase of compound and liquid be in a ratio of 2:1, in feeding ball mill, in ratio of grinding media to material
6:1st, ball milling speed is ball milling 20 hours under conditions of 1500 turns/hour, obtains nanopowder, crosses 100 mesh sieves；
（4）By nanopowder obtained above by spray gun spraying in step（2）Die surface after treatment, completes in spraying
Afterwards, 18-25 minutes is incubated under conditions of 240 DEG C, makes powder coating solidification, obtained final product.
Wherein, the step（1）The middle raw material 40Cr that will prepare cold punching die is formulated, ball milling, load after drying
It is compressing on forcing press in the mould of making cold punching die；The surface conditioning agent is used after raw material mixing
Obtained within 20-25 minutes through superelevation sound wave shock；The particle diameter of the silica granule is to be determined with laser diffractometry, obtains particle diameter distribution
Middle particle diameter is in 0.8-2 μm and 3.5-4 μ ms.
Embodiment 2
A kind of cold stamping auto parts and components mould, surface be provided with a layer thickness for 400 μm, raw material comprising samarium oxide with weight ratio
It is the oxide layer of the rutile titanium dioxide of 0.3% doping, its processing method is comprised the following steps；
（1）In the mould it is compressing after, after gained mould is through degreasing, pickling, be put into four fourths that mass concentration is 4-6%
In base tin acetone soln, after closed processes 20-25 minutes, take out and use deionized water rinsing 35-40 minutes；
（2）The mould after above-mentioned treatment is brushed with surface conditioning agent, surface conditioning agent by following weight portion raw material system
Into：10 parts of ammonium hexavanadate, 4 parts of acetylacetone,2,4-pentanedione, 2 parts of methyl isopropyl Ketone, 3 parts of fentin acetate, mass concentration are 4-7%
36 parts of aqueous hydrochloric acid solution, after the completion of brushing, the spontaneous curing under normal temperature condition；
（3）By weight, samarium oxide is taken with weight than 8 parts of rutile titanium dioxide, the silica granule 4 for 0.3% doping
After part, 3 parts of strontium carbonate, 0.6 part of carboxymethylcellulose calcium, 0.4 part of Mercapto-phenyl polysilsesquioxane, 1.5 parts of mixing of caddy,
It is the ethanol solution of 40-45% to add mass concentration, the solid phase of compound and liquid is in a ratio of 2:1, in feeding ball mill, in ball
Material compares 6:1st, ball milling speed is ball milling 24 hours under conditions of 1500 turns/hour, obtains nanopowder, crosses 100 mesh sieves；
（4）By nanopowder obtained above by spray gun spraying in step（2）Die surface after treatment, completes in spraying
Afterwards, 18-25 minutes is incubated under conditions of 240-260 DEG C, makes powder coating solidification, obtained final product.
Embodiment 3
A kind of cold stamping auto parts and components mould, surface be provided with a layer thickness for 200 μm, raw material comprising samarium oxide with weight ratio
It is the oxide layer of the rutile titanium dioxide of 0.3% doping, its processing method is comprised the following steps；
（1）In the mould it is compressing after, after gained mould is through degreasing, pickling, be put into four fourths that mass concentration is 4-6%
In base tin acetone soln, after closed processes 20-25 minutes, take out and use deionized water rinsing 35-40 minutes；
（2）The mould after above-mentioned treatment is brushed with surface conditioning agent, surface conditioning agent by following weight portion raw material system
Into：8 parts of ammonium hexavanadate, 5 parts of acetylacetone,2,4-pentanedione, 3 parts of methyl isopropyl Ketone, 2 parts of fentin acetate, mass concentration are 4-7%'s
40 parts of aqueous hydrochloric acid solution, after the completion of brushing, the spontaneous curing under normal temperature condition；
（3）By weight, samarium oxide is taken with weight than 10 parts of rutile titanium dioxide, the silica granule 6 for 0.3% doping
After part, 2 parts of strontium carbonate, 0.4 part of carboxymethylcellulose calcium, 0.3 part of Mercapto-phenyl polysilsesquioxane, 1.2 parts of mixing of caddy,
It is the ethanol solution of 40-45% to add mass concentration, the solid phase of compound and liquid is in a ratio of 2:1, in feeding ball mill, in ball
Material compares 6:1st, ball milling speed is ball milling 22 hours under conditions of 1500 turns/hour, obtains nanopowder, crosses 100 mesh sieves；
（4）By nanopowder obtained above by spray gun spraying in step（2）Die surface after treatment, completes in spraying
Afterwards, 22 minutes are incubated under conditions of 240-260 DEG C, make powder coating solidification, obtained final product.
By according to the mould of method before processing in the present invention as a control group, according to corresponding preparation method prepare 20mm ×
The experiment slice of 20mm × 15mm, using Vickers, determines the hardness in the range of 500-520 DEG C during temperature, every group
Detection is multiple, calculates average value；Its toughness is detected using Charpy impact test；Experiment body with SKD11 as raw material is carried out slightly
Working durability during processing, the life-span for setting control group is 1, and other groups obtain life-span ratio compared with the life-span of control group；
Quenched 200 minutes in 1000 DEG C of vacuum drying oven, be tempered 600 minutes in 500 DEG C of vacuum T stoves, obtain heat distortion amount, to implementing
Detection obtains following result according to the method described above in example 1-3 and control group：
Table 1
| Project | Control group | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Hardness（HV） | 685 | 706 | 712 | 708 |
| Pendulum impact value（J） | 10 | 14 | 15 | 13 |
| Life-span ratio | 1 | 4.3 | 4.6 | 4.5 |
| Maximum heat treatment deformation quantity（%） | 0.16 | 0.05 | 0.04 | 0.05 |
Method is processed to original mould in can be seen that the present invention by data in table 1, its combination property has been obtained larger
Improve, pendulum impact value increases explanation its toughness enhancing, it is possible to reduce converted products is caused to damage in process, it is heat-resisting
Property it is good, help to increase the quality product rate of converted products, its service life greatly prolongs, remarkable in economical benefits.
Claims (5)
1. a kind of cold stamping auto parts and components mould, it is characterised in that surface is provided with a layer thickness for 200-400 μm, raw material
Oxide layer comprising samarium oxide with weight than the rutile titanium dioxide for 0.3% doping, its processing method includes following step
Suddenly；
（1）In the mould it is compressing after, after gained mould is through degreasing, pickling, be put into four fourths that mass concentration is 4-6%
In base tin acetone soln, after closed processes 20-25 minutes, take out and use deionized water rinsing 35-40 minutes；
（2）The mould after above-mentioned treatment is brushed with surface conditioning agent, surface conditioning agent by following weight portion raw material system
Into：Ammonium hexavanadate 6-10 parts, acetylacetone,2,4-pentanedione 4-6 parts, methyl isopropyl Ketone 2-4 parts, fentin acetate 1-3 parts, quality it is dense
It is aqueous hydrochloric acid solution 35-40 parts of 4-7% to spend, after the completion of brushing, the spontaneous curing under normal temperature condition；
（3）By weight, samarium oxide is taken with weight than rutile titanium dioxide 8-12 parts, silica granule for 0.3% doping
4-8 parts, strontium carbonate 2-3 parts, carboxymethylcellulose calcium 0.2-0.6 parts, 0.2-0.4 parts of Mercapto-phenyl polysilsesquioxane, caddy
After 0.8-1.5 parts of mixing, it is the ethanol solution of 40-45% to add mass concentration, the solid phase of compound and liquid is in a ratio of 2:1, send
In entering ball mill, in ratio of grinding media to material 6:1st, ball milling speed is ball milling 20-24 hours under conditions of 1500 turns/hour, to obtain nano powder
Material, crosses 100 mesh sieves；
（4）By nanopowder obtained above by spray gun spraying in step（2）Die surface after treatment, completes in spraying
Afterwards, 18-25 minutes is incubated under conditions of 240-260 DEG C, makes powder coating solidification, obtained final product.
2. as claimed in claim 1 a kind of cold stamping auto parts and components mould, it is characterised in that the step（1）It is middle to make
The raw material of standby cold punching die are formulated, ball milling, is fitted into the mould of making cold punching die after drying, in forcing press
It is upper compressing.
3. as claimed in claim 1 a kind of cold stamping auto parts and components mould, it is characterised in that the surface conditioning agent is in original
Obtained within 20-25 minutes using through superelevation sound wave shock after material mixing.
4. as claimed in claim 1 a kind of cold stamping auto parts and components mould, it is characterised in that the particle diameter of the silica granule
It is to be determined with laser diffractometry, particle diameter is in 0.8-2 μm and 3.5-4 μ ms in obtaining particle diameter distribution.
5. as claimed in claim 1 a kind of cold stamping auto parts and components mould, it is characterised in that the step（4）Spraying side
Method is electrostatic spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611230681.6A CN106807845B (en) | 2016-12-28 | 2016-12-28 | A kind of cold stamping auto parts and components mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611230681.6A CN106807845B (en) | 2016-12-28 | 2016-12-28 | A kind of cold stamping auto parts and components mold |
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| Publication Number | Publication Date |
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| CN106807845A true CN106807845A (en) | 2017-06-09 |
| CN106807845B CN106807845B (en) | 2018-12-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07100559A (en) * | 1993-10-06 | 1995-04-18 | Aisin Seiki Co Ltd | Method for forming three dimensional die parts |
| US20070092738A1 (en) * | 2003-10-03 | 2007-04-26 | Hempel A/S | Tie-coat composition comprising at least two types of functional polysiloxane compounds and a method for using the same for establishing a coating on a substrate |
| CN101885914A (en) * | 2010-07-13 | 2010-11-17 | 东莞市意普万工程塑料有限公司 | Composite material special for automobile engine oil pan and preparation method thereof |
| CN102728640A (en) * | 2012-06-14 | 2012-10-17 | 南京航空航天大学 | Method for determining torque of internal thread cold extrusion molding |
| CN105647335A (en) * | 2014-11-12 | 2016-06-08 | 袁传江 | Method for preparing powdery coating material |
-
2016
- 2016-12-28 CN CN201611230681.6A patent/CN106807845B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07100559A (en) * | 1993-10-06 | 1995-04-18 | Aisin Seiki Co Ltd | Method for forming three dimensional die parts |
| US20070092738A1 (en) * | 2003-10-03 | 2007-04-26 | Hempel A/S | Tie-coat composition comprising at least two types of functional polysiloxane compounds and a method for using the same for establishing a coating on a substrate |
| CN101885914A (en) * | 2010-07-13 | 2010-11-17 | 东莞市意普万工程塑料有限公司 | Composite material special for automobile engine oil pan and preparation method thereof |
| CN102728640A (en) * | 2012-06-14 | 2012-10-17 | 南京航空航天大学 | Method for determining torque of internal thread cold extrusion molding |
| CN105647335A (en) * | 2014-11-12 | 2016-06-08 | 袁传江 | Method for preparing powdery coating material |
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| CN106807845B (en) | 2018-12-11 |
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Effective date of registration: 20181029 Address after: 315000 No. 2 Cixi Road, sang Chau village, sang Zhou Town, Ninghai, Ningbo, Zhejiang Applicant after: Ningbo Jiu Xin Car assessories Co., Ltd Address before: 243100 science and Technology Innovation Park, Ma'anshan Economic Development Zone, Anhui Province Applicant before: Landtek re-manufacturing technology company limited of Ma'an Mountain |
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