CN102268628A - Wear-resistant high temperature-resistant stamping die prepared by arc spraying method - Google Patents
Wear-resistant high temperature-resistant stamping die prepared by arc spraying method Download PDFInfo
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- CN102268628A CN102268628A CN2011101503593A CN201110150359A CN102268628A CN 102268628 A CN102268628 A CN 102268628A CN 2011101503593 A CN2011101503593 A CN 2011101503593A CN 201110150359 A CN201110150359 A CN 201110150359A CN 102268628 A CN102268628 A CN 102268628A
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- arc spraying
- press tool
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- wear
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Abstract
The invention provides a method for preparing a stamping die by arc spraying, which comprises the following steps: providing a rapid prototype, a transition model or a real product as a master die; performing pretreatment of the master die surface; performing arc spraying of a wire material so as to prepare the wear-resistant high temperature-resistant stamping die shell; stripping the master die and performing post-treatment. With the die preparation method of the invention, technical difficulties of traditional casting or forging methods are avoided successfully; and with the preparation method of the invention, the process flow is simple, and the obtained die has high surface quality.
Description
Technical field
The present invention relates to a kind of press tool, in particular, relate to a kind of press tool of arc spray process preparation.
Background technology
Mould is widely used in impact briquetting processing.Generally need have following performance for stamping forming mould:
(1) under the hot environment, has good rigidity, anti-mechanical impact strength and high hardness.
(2) repeatedly and under the thermal shocking of rapid heating refrigerative, mould does not crack or is out of shape.
(3) under the hot conditions, chemical reaction does not take place in molding surface and forming metal.
(4) the high temperature oxidation phenomenon can not take place in mould under hot conditions.
(5) good processability, the surface of easily being processed into high precision and high surface finish.
Traditional mould that is used to pour into a mould materials such as refractory metal or glass adopts stainless steel or Refractoloy steel as moulding stock mostly, but high temperature oxidation takes place in this mould easily, under thermal cycling effect repeatedly, the inside crystal phase structure of material changes, and surface quality is variation also, thereby causes mould to lose efficacy easily.
In order to address the above problem, people can expect using the metal oxide ceramic particle of hard and superhard alloy to be used to mfg. moulding die usually.But, be difficult to be processed into required specified shape because described material hardness is very high.
The technical problem that is difficult to the processing and manufacturing mould for the metal oxide ceramic particle that solves hard, the present inventor uses in the prior art existing indirect mold making technology in the existing metal spraying by electric arc technology and prior art, has creatively proposed a kind of electric arc spraying Rapid tooling.It is with a mock-up as master mold, be thermal source with electric arc,, and make its injection, be deposited on the master mold surface the atomizing of the metallic substance of molten state by high velocity air, form the metal matrix or the ceramic base coating of certain thickness densification, i.e. the mould shell.
Summary of the invention
One of purpose of the present invention is to provide the method for a kind of electrical arc spraying method for preparing iron-based press tool, and this method can be used for improving the high temperature resistant and wear resisting property of press tool, and work-ing life that can this mould of significant prolongation.
Another object of the present invention also is to provide a kind of press tool by method for preparing.
To achieve these goals, the present invention at first provides a kind of method of electrical arc spraying method for preparing press tool, and it may further comprise the steps:
(1) provides a rapid prototyping, transition model or product material object, as master mold;
(2) pre-treatment is carried out on the master mold surface;
(3) arc spraying filament material prepares described Wear-resistant, high-temperature resistant press tool housing;
(4) slough master mold and aftertreatment.
Wherein, be mould of plastics, gypsum mold, the timber mould that rapid shaping technique obtains at the master mold described in the step (1), or ceramic die or graphite jig.
Wherein, comprise the step that applies releasing agent at the pre-treatment step described in the step (2); Described releasing agent can be machinery oil, polyvinyl alcohol etc.Described releasing agent can adopt the mode of brushing or spraying or dipping to put on the outside surface of master mold.
Wherein, in step (3), the composition and the content of described silk material are respectively: the Fe of TiC:5-15wt%, SiC:5-15wt%, Ni:15-36wt%, Mo:10-18wt%, Cr:8-15wt%, C:0.5-3wt% and surplus.
Wherein, in step (3), the processing parameter of electric arc spraying is: operating voltage: 25-35V; Spray distance is: 100-180mm; Air pressure is 0.5-0.9MPa; Walk filament voltage: 13-16V.As required, the thickness of spraying is 5-20mm.
The median size of wherein preferred described wild phase TiC and SiC is less than 100um; The median size of preferred described ceramic particle is less than 50um; Preferred, the particle diameter of described ceramic particle is a nano level, and median size is in the scope of 10-50nm.
Wherein, in step (4), the step that comprises an anneal, under the condition of vacuum environment or rare gas element or reducing gas, carry out anneal, wherein annealing temperature is the 700-1050 degree, annealing soaking time 2-5 hour heats up or rate of temperature fall is 0.5-5 degree/second, to form the stable housing that contains the high temperature resistant phase of hard, wear-resistant.
In addition, in order further to improve quality, can also apply extra coating by other methods such as spraying, vapour depositions at the surface of shell of preparation.
Another aspect of the present invention also provides a kind of press tool by electrical arc spraying method for preparing, and described press tool is by obtaining at master mold surface arcing spraying wire.
Wherein, the composition and the content of described silk material are respectively: the Fe of TiC:5-15wt%, SiC:5-15wt%, Ni:15-36wt%, Mo:10-18wt%, Cr:8-15wt%, C:0.5-3wt% and surplus.
Wherein, the processing parameter of electric arc spraying is: operating voltage: 25-35V; Spray distance is: 100-180mm; Air pressure is 0.5-0.9MPa; Walk filament voltage: 13-16V.As required, the thickness of spraying is 5-20mm.
The median size of wherein said wild phase TiC and SiC is less than 100um; The median size of preferred described ceramic particle is less than 50um; Preferred, the particle diameter of described ceramic particle is a nano level, and median size is in the scope of 10-50nm.
Wherein, the step that after electric arc spraying, also comprises an anneal, under the condition of vacuum environment or rare gas element or reducing gas, carry out anneal, wherein annealing temperature is the 700-1050 degree, annealing soaking time 2-5 hour, intensification or rate of temperature fall are 0.5-5 degree/second, to form the stable housing that contains the high temperature resistant phase of hard, wear-resistant.
Method of the present invention compared with prior art has the following advantages:
(1) for the material matrix of high rigidity, successful solution traditional casting or the forging method technical barrier for preparing the high rigidity mould; In fact the mould that has said components can't be realized by traditional casting process; And by forged method, the height that its cost is suitable makes business circles be difficult to accept.
(2) adopt arc spray process, preparation technology's flow process is simple, and the die surface quality height for preparing.
Forged mould that mould of the present invention and available technology adopting are common etc. is compared, and has the following advantages:
(1) electric arc spraying can form continuously fine and close coating on metal base, and this coating has ceramic-metallic weave construction and performance through behind the high temperature annealing, and possesses and have stainless feature concurrently.
(2) compare with traditional Wimet, have higher hardness, red hardness, wear resistance, wear-resistant ability and stability at elevated temperature, can be anti-pyritous about 1000 degree circulate repeatedly.
Embodiment
Below will make further instructions technical scheme of the present invention by specific embodiment.The applicant it is emphasized that following examples only are the needs for the content that describes invention in detail, and can not think limitation of the present invention.The scope of protection of present invention is as the criterion with the technical scheme that claims were limited.
Embodiment 1
Utilize computer drawing technology to draw the CAD 3D model of part,, adopt the method for digital control processing plaster mold to prepare the gypsum master mold according to the RP technology;
External coating polyvinyl alcohol solution at the gypsum master mold;
At the outside surface arc spraying filament material of gypsum master mold, described composition and content are respectively: the Fe of TiC:10wt%, SiC:15wt%, Ni:28wt%, Mo:15wt%, Cr:15wt%, C:0.5wt% and surplus.Wherein, the processing parameter of electric arc spraying is: operating voltage: 30V; Spray distance is: 175mm; Air pressure is 0.8MPa; Walk filament voltage: 15V.The thickness of spraying is 10mm.
Remove the gypsum master mold, the iron-based housing that makes is carried out anneal.The processing condition of anneal are vacuum annealing, annealing temperature: 850 degree, annealing time: 3 hours.
Embodiment 2
Utilize computer drawing technology to draw the CAD 3D model of part,, adopt the method for digital control processing to prepare the resin master mold according to the RP technology;
External coating machinery oil at the resin master mold;
At the outside surface arc spraying filament material of resin master mold, described composition and content are respectively: the Fe of TiC:15wt%, SiC:10wt%, Ni:36wt%, Mo:18wt%, Cr:8wt%, C:0.5wt% and surplus.Wherein, the processing parameter of electric arc spraying is: operating voltage: 25V; Spray distance is: 180mm; Air pressure is 0.8MPa; Walk filament voltage: 16V.The thickness of spraying is 15mm.
Remove the resin master mold, the iron-based housing that makes is carried out anneal.The processing condition of anneal are vacuum annealing, annealing temperature: 900 degree, annealing time: 3 hours.
Embodiment 3
Utilize computer drawing technology to draw the CAD 3D model of part, adopt the method for digital control processing to prepare the timber master mold;
External coating machinery oil at the timber master mold;
At the outside surface arc spraying filament material of timber master mold, described composition and content are respectively: the Fe of TiC:12wt%, SiC:13wt%, Ni:25wt%, Mo:15wt%, Cr:15wt%, C:0.8wt% and surplus.Wherein, the processing parameter of electric arc spraying is: operating voltage: 35V; Spray distance is: 180mm; Air pressure is 0.75MPa; Walk filament voltage: 15V.The thickness of spraying is 20mm.
Remove the timber master mold, the iron-based housing that makes is carried out anneal.The processing condition of anneal are vacuum annealing, annealing temperature: 950 degree, annealing time: 3 hours.
Claims (10)
1. the method for electrical arc spraying method for preparing Wear-resistant, high-temperature resistant press tool, it may further comprise the steps:
(1) provides a rapid prototyping, transition model or product material object, as master mold;
(2) pre-treatment is carried out on the master mold surface;
(3) arc spraying filament material prepares described Wear-resistant, high-temperature resistant press tool housing;
(4) slough master mold and aftertreatment.
2. the method for the described electrical arc spraying method for preparing iron-based of claim 1 press tool, its feature is mould of plastics, gypsum mold, timber mould, ceramic die or graphite jig at described master mold.
3. the method for the described electrical arc spraying method for preparing iron-based of claim 1 press tool, described pre-treatment step comprises the step that applies releasing agent; Described releasing agent can be machinery oil or polyvinyl alcohol.
4. the method for the described electrical arc spraying method for preparing iron-based of claim 1 press tool, the composition and the content of described silk material are respectively: the Fe of TiC:5-15wt%, SiC:5-15wt%, Ni:15-36wt%, Mo:10-18wt%, Cr:8-15wt%, C:0.5-3wt% and surplus.
5. the method for the described electrical arc spraying method for preparing iron-based of claim 1 press tool, the processing parameter of electric arc spraying is: the processing parameter of electric arc spraying is: operating voltage: 25-35V; Spray distance is: 100-180mm; Air pressure is 0.5-0.9MPa; Walk filament voltage: 13-16V.The thickness of spraying is 5-20mm.
6. the method for the described electrical arc spraying method for preparing iron-based of claim 4 press tool, the median size of described TiC, SiC is less than 100um.
7. the method for the described electrical arc spraying method for preparing iron-based of claim 6 press tool, the median size of described TiC, SiC is in the scope of 10-50nm.
8. the method for the described electrical arc spraying method for preparing iron-based of claim 1 press tool, step (4) comprises the step of an anneal, carries out anneal under the condition of vacuum environment or rare gas element or reducing gas.
9. the method for the described electrical arc spraying method for preparing iron-based of claim 1 press tool, wherein annealing temperature is the 700-1050 degree, annealing soaking time 2-5 hour heats up or rate of temperature fall is 0.5-5 degree/second, to form the stable housing that contains the high temperature resistant phase of hard, wear-resistant.
10. Wear-resistant, high-temperature resistant press tool, the method any according to claim 1-9 prepares.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101503593A CN102268628A (en) | 2011-06-07 | 2011-06-07 | Wear-resistant high temperature-resistant stamping die prepared by arc spraying method |
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| CN2011101503593A CN102268628A (en) | 2011-06-07 | 2011-06-07 | Wear-resistant high temperature-resistant stamping die prepared by arc spraying method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345917A (en) * | 2015-11-09 | 2016-02-24 | 无锡市锡山区仁景模具厂 | Durable road edge stone mold |
| CN107716739A (en) * | 2017-10-17 | 2018-02-23 | 天津汇友连众精密模具有限公司 | A kind of metal spraying by electric arc mould process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1339616A (en) * | 2000-08-17 | 2002-03-13 | 湖南省高程科技有限公司 | Coating method for wear resistank composite coating on steel base surface |
| CN1488455A (en) * | 2003-08-18 | 2004-04-14 | 西安交通大学 | Method of rapid manufacture of stamping die for arc spraying covering-piece for automobile |
| CN1562555A (en) * | 2004-04-18 | 2005-01-12 | 浙江大学 | Method fr preparing electric arc spraying fiber material containing core of nano material |
| WO2007133536A2 (en) * | 2006-05-12 | 2007-11-22 | Praxair S. T. Technology, Inc. | Thermal spray coated work rolls |
| CN101434026A (en) * | 2008-11-19 | 2009-05-20 | 西安交通大学 | High-melting metal arc spraying rapid die-manufacturing method |
-
2011
- 2011-06-07 CN CN2011101503593A patent/CN102268628A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1339616A (en) * | 2000-08-17 | 2002-03-13 | 湖南省高程科技有限公司 | Coating method for wear resistank composite coating on steel base surface |
| CN1488455A (en) * | 2003-08-18 | 2004-04-14 | 西安交通大学 | Method of rapid manufacture of stamping die for arc spraying covering-piece for automobile |
| CN1562555A (en) * | 2004-04-18 | 2005-01-12 | 浙江大学 | Method fr preparing electric arc spraying fiber material containing core of nano material |
| WO2007133536A2 (en) * | 2006-05-12 | 2007-11-22 | Praxair S. T. Technology, Inc. | Thermal spray coated work rolls |
| CN101434026A (en) * | 2008-11-19 | 2009-05-20 | 西安交通大学 | High-melting metal arc spraying rapid die-manufacturing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345917A (en) * | 2015-11-09 | 2016-02-24 | 无锡市锡山区仁景模具厂 | Durable road edge stone mold |
| CN107716739A (en) * | 2017-10-17 | 2018-02-23 | 天津汇友连众精密模具有限公司 | A kind of metal spraying by electric arc mould process |
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Application publication date: 20111207 |