CN106521477A - 一种汽车模具表层处理方法 - Google Patents
一种汽车模具表层处理方法 Download PDFInfo
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- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/70—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using melts
- C23C22/72—Treatment of iron or alloys based thereon
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- 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
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- 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
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- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/78—Pretreatment of the material to be coated
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- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
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- Heat Treatment Of Articles (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
本发明公开了汽车模具表层处理方法,包括步骤如下:打磨,预热,含钒熔盐介质处理,淬火,回火,抛光。采用本发明的处理方法,不仅能够增加汽车模具寿命,而且成本低,适于应用于工业生产。
Description
技术领域
本发明涉及汽车模具,特别涉及一种汽车模具表层处理方法。
背景技术
当今社会,汽车模具均采用合金材料制成,但是寿命较低,采用稀有合金材料时,制作出来的汽车模具使用寿命会增加,而且不容易产生拉毛,但其成本过高,不适宜工业应用,普通合金材料含碳量有时会过高,容易导致模具失去塑形,产生崩裂的现象。
发明内容
本发明所要解决的技术问题是提供一种汽车模具表层处理方法,经过该方法处理过的汽车模具表层不仅寿命长,而且成本低,适于应用于工业生产。
为实现上述目的,本发明提供以下的技术方案:一种汽车模具表层处理方法,包括以下步骤:
1)、对汽车模具表面进行粗加工,并对其进行打磨;
2)、当汽车模具表面打磨到设定精度后,对汽车模具表面进行预热,预热时间为1到2小时,预热温度为650℃到800℃;
3)、将预热后的汽车模具表面放在含钒熔盐介质中,所述含钒熔盐介质的温度加热至900℃到1050℃,所述汽车模具表面浸在含钒熔盐介质内,经过与含钒熔盐介质产生化学反应,使汽车模具表面形成碳化钒的保护膜;
4)、在汽车模具表面形成保护膜后,取出汽车模具,然后在淬火介质中对汽车模具进行淬火,淬火温度为1100℃到1150℃;
5)、淬火完成后,对汽车模具进行回火,回火温度为300℃到350℃;
6)、回火后将汽车模具表面形成的杂质清除掉;
7)、完成步骤6)后,对汽车模具表面进行抛光处理。
优选的,在步骤2)中,预热分为三步进行,第一次预热持续时间为30分钟,预热温度为650℃,第二次预热持续时间为30分钟,预热温度为730℃,第三次预热持续时间为30分钟,预热温度为800℃。
优选的,在步骤5)中,回火过程也分为三步进行,第一次回火温度为300℃,回火时间为1小时,第二次回火温度为300℃,回火时间为1小时,第三次回火温度为300℃,回火时间为1小时。
优选的,在步骤4)中,取出汽车模具时采用行车吊出汽车模具。
采用上述技术方案,在汽车模具淬火之前,通过含钒熔盐介质的化学反应,在汽车模具表层产生一层保护膜,从而使汽车模具的使用寿命增加,而且该方法实施简单,成本低廉,适于工业生产。另外,在预热之前,对汽车模具进行打磨,从而减少了汽车模具表层的碳含量,适量的碳含量能够阻止晶粒长大,提高汽车模具表层的耐磨性。
具体实施方式
本发明的实施例,汽车模具表层处理方法,包括以下步骤:
1)、对汽车模具表面进行粗加工,并对其进行打磨;
2)、当汽车模具表面打磨到设定精度后,对汽车模具表面进行预热,预热时间为1到2小时,预热温度为650℃到800℃;
3)、将预热后的汽车模具表面放在含钒熔盐介质中,所述含钒熔盐介质的温度加热至900℃到1050℃,所述汽车模具表面浸在含钒熔盐介质内,经过与含钒熔盐介质产生化学反应,使汽车模具表面形成厚度为0.05mm的碳化钒保护膜,反应时间越长,保护膜的厚度越厚,本实施例反应时间为6小时,通常反应时间在4到8小时内;
4)、在汽车模具表面形成保护膜后,采用行车吊出汽车模具,然后在淬火介质中对汽车模具进行淬火,淬火温度为1100℃到1150℃;
5)、淬火完成后,对汽车模具进行回火,回火温度为300℃到350℃;
6)、回火后将汽车模具表面形成的杂质清除掉;
7)、完成步骤6)后,对汽车模具表面进行抛光处理。
在步骤2)中,预热分为三步进行,第一次预热持续时间为30分钟,预热温度为650℃,第二次预热持续时间为30分钟,预热温度为730℃,第三次预热持续时间为30分钟,预热温度为800℃。
在步骤5)中,回火过程也分为三步进行,第一次回火温度为300℃,回火时间为1小时,第二次回火温度为300℃,回火时间为1小时,第三次回火温度为300℃,回火时间为1小时。
本发明在汽车模具淬火之前,通过含钒熔盐介质的化学反应,在汽车模具表层产生一层保护膜,从而使汽车模具的使用寿命增加,而且该方法实施简单,成本低廉,适于工业生产。另外,在预热之前,对汽车模具进行打磨,从而减少了汽车模具表层的碳含量,适量的碳含量能够阻止晶粒长大,提高汽车模具表层的耐磨性。
以上所述的仅是本发明的优选实施方式,应当指出,对于本领域的普通技术人员来说,在不脱离本发明创造构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。
Claims (4)
1.一种汽车模具表层处理方法,其特征在于,包括以下步骤:
1)、对汽车模具表面进行粗加工,并对其进行打磨;
2)、当汽车模具表面打磨到设定精度后,对汽车模具表面进行预热,预热时间为1到2小时,预热温度为650℃到800℃;
3)、将预热后的汽车模具表面放在含钒熔盐介质中,所述含钒熔盐介质的温度加热至900℃到1050℃,所述汽车模具表面浸在含钒熔盐介质内,经过与含钒熔盐介质产生化学反应,使汽车模具表面形成碳化钒的保护膜;
4)、在汽车模具表面形成保护膜后,取出汽车模具,然后在淬火介质中对汽车模具进行淬火,淬火温度为1100℃到1150℃;
5)、淬火完成后,对汽车模具进行回火,回火温度为300℃到350℃;
6)、回火后将汽车模具表面形成的杂质清除掉;
7)、完成步骤6)后,对汽车模具表面进行抛光处理。
2.根据权利要求1所述的汽车模具表层处理方法,其特征在于:在步骤2)中,预热分为三步进行,第一次预热持续时间为30分钟,预热温度为650℃,第二次预热持续时间为30分钟,预热温度为730℃,第三次预热持续时间为30分钟,预热温度为800℃。
3.根据权利要求2所述的汽车模具表层处理方法,其特征在于:在步骤5)中,回火过程也分为三步进行,第一次回火温度为300℃,回火时间为1小时,第二次回火温度为300℃,回火时间为1小时,第三次回火温度为300℃,回火时间为1小时。
4.根据权利要求3所述的汽车模具表层处理方法,其特征在于:在步骤4)中,取出汽车模具时采用行车吊出汽车模具。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107937912A (zh) * | 2017-11-21 | 2018-04-20 | 江苏雨燕模业科技有限公司 | 汽车模具表层处理方法 |
CN107937867A (zh) * | 2017-11-18 | 2018-04-20 | 蚌埠市宏大制药机械有限公司 | 一种金属冲压模具的表面处理方法 |
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EP0252479A2 (en) * | 1986-07-07 | 1988-01-13 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Method for surface treatment and treating material therefor |
CN1609272A (zh) * | 2004-10-13 | 2005-04-27 | 昆明理工大学 | 一种制备金属碳化物硬面涂层的方法及其应用 |
CN101914749A (zh) * | 2010-07-20 | 2010-12-15 | 阎逸飞 | 一种新的盐浴渗钒方法及一种新的盐浴渗钒剂 |
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- 2017-01-21 CN CN201710044097.XA patent/CN106521477A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0252479A2 (en) * | 1986-07-07 | 1988-01-13 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Method for surface treatment and treating material therefor |
CN1609272A (zh) * | 2004-10-13 | 2005-04-27 | 昆明理工大学 | 一种制备金属碳化物硬面涂层的方法及其应用 |
CN101914749A (zh) * | 2010-07-20 | 2010-12-15 | 阎逸飞 | 一种新的盐浴渗钒方法及一种新的盐浴渗钒剂 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107937867A (zh) * | 2017-11-18 | 2018-04-20 | 蚌埠市宏大制药机械有限公司 | 一种金属冲压模具的表面处理方法 |
CN107937912A (zh) * | 2017-11-21 | 2018-04-20 | 江苏雨燕模业科技有限公司 | 汽车模具表层处理方法 |
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