CN107321991A - 一种金刚石复合体阀门制造方法 - Google Patents

一种金刚石复合体阀门制造方法 Download PDF

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CN107321991A
CN107321991A CN201710409808.9A CN201710409808A CN107321991A CN 107321991 A CN107321991 A CN 107321991A CN 201710409808 A CN201710409808 A CN 201710409808A CN 107321991 A CN107321991 A CN 107321991A
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valve
diamond
temperature
normalizing
manufacture method
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李洪
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CHENGDU LAIDA MACHINERY ELECTRONIC Co Ltd
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CHENGDU LAIDA MACHINERY ELECTRONIC Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24After-treatment of workpieces or articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • C21D1/25Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26Methods of annealing
    • C21D1/28Normalising
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24After-treatment of workpieces or articles
    • B22F2003/248Thermal after-treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10Processes characterised by the sequence of their steps

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)

Abstract

本发明公开了一种金刚石复合体阀门制造方法,包括以下步骤:A.选择钨(W)‑钴(Co)类硬质合金加工出阀门基体,再选择金刚石粉末,并去除吸附在金刚石粉末表面的悬浮气体,加入助烧剂,混拌均匀得到金刚石混合料,并将金刚石混合料放置于阀门基体内,再整体置入烧结室,并加压后升温到1400~1500℃时,烧结10min,停热卸压快速冷却;所得的阀门胚件进行热处理,并进行机加工得到精加工胚料;得到的阀精加工胚料进行调质处理,调质处理采用两次正火和一次回火。采用本发明能够有效提高阀的使用寿命。

Description

一种金刚石复合体阀门制造方法
技术领域
本发明涉及阀门制造技术领域,特别是涉及一种金刚石复合体阀门制造方法。
背景技术
阀门在现代社会被广泛的应用。现有技术的阀门有很多种,主要有球阀、角阀、截止阀等,由于阀的结构比较简单,操作方便,所以应用的非常广泛。
而阀的密封功能一旦发生磨损或破裂就易发生泄露,在燃气、油气等领域一旦发生泄漏,极易发生安全事故。因此,在阀的生产过程中,需要提高其密封性能,能够提高其使用寿命,减少泄漏事故的发生。
发明内容
本发明主要解决的技术问题是提供一种金刚石复合体阀门制造方法,通过改变阀的生产工艺,来提高其使用寿命。
为解决上述技术目的,本发明采用的技术方案如下:
一种金刚石复合体阀门制造方法,其特征在于,包括以下步骤:
A.选择钨(W)-钴(Co)类硬质合金加工出阀门基体,再选择金刚石粉末,并去除吸附在金刚石粉末表面的悬浮气体,加入助烧剂,混拌均匀得到金刚石混合料,并将金刚石混合料放置于阀门基体内,再整体置入烧结室,并加压后升温到1400~1500℃时,烧结10min,停热卸压快速冷却;
B.将A步骤中所得的阀门胚件进行热处理,并进行机加工得到精加工胚料;
C.对步骤B得到的阀精加工胚料进行调质处理,调质处理采用两次正火和一次回火,第一次正火温度大于第二次正火温度;第一次正火:正火温度850℃,保持10min;第二次正火:正火温度800℃,保持5min;回火:采用分段加热,第一段加热温度为560-570℃,到温后保温15-17min,第二段加热温度为690-700℃,保持10min以上;
D.对C步骤所得阀门进行水冷直至室温;
E.对D步骤冷却后的阀门进行表面涂层。
进一步地,所述表面涂层为碳化钨涂层,且涂层厚度为0.5-1mm。
本发明的有益效果是:区别于现有技术的情况,本发明所得的阀其使用寿命更长,密封效果更好。
具体实施方式
下面结合具体实施例对本发明做进一步地说明。
一种金刚石复合体阀门制造方法,包括以下步骤:
A.选择钨(W)-钴(Co)类硬质合金加工出阀门基体,再选择金刚石粉末,并去除吸附在金刚石粉末表面的悬浮气体,加入助烧剂,混拌均匀得到金刚石混合料,并将金刚石混合料放置于阀门基体内,再整体置入烧结室,并加压后升温到1400~1500℃时,烧结10min,停热卸压快速冷却;
B.将A步骤中所得的阀门胚件进行热处理,并进行机加工得到精加工胚料;
C.对步骤B得到的阀精加工胚料进行调质处理,调质处理采用两次正火和一次回火,第一次正火温度大于第二次正火温度;第一次正火:正火温度850℃,保持10min;第二次正火:正火温度800℃,保持5min;回火:采用分段加热,第一段加热温度为560-570℃,到温后保温15-17min,第二段加热温度为690-700℃,保持10min以上;
D.对C步骤所得阀门进行水冷直至室温;
E.对D步骤冷却后的阀门进行表面涂层。所述表面涂层为碳化钨涂层,且涂层厚度为0.5-1mm。
本发明所得的阀其使用寿命更长,密封效果更好。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用发明说明书内容所作的等效结构或等效流程变换,或直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。

Claims (2)

1.一种金刚石复合体阀门制造方法,其特征在于,包括以下步骤:
A.选择钨(W)-钴(Co)类硬质合金加工出阀门基体,再选择金刚石粉末,并去除吸附在金刚石粉末表面的悬浮气体,加入助烧剂,混拌均匀得到金刚石混合料,并将金刚石混合料放置于阀门基体内,再整体置入烧结室,并加压后升温到1400~1500℃时,烧结10min,停热卸压快速冷却;
B.将A步骤中所得的阀门胚件进行热处理,并进行机加工得到精加工胚料;
C.对步骤B得到的阀精加工胚料进行调质处理,调质处理采用两次正火和一次回火,第一次正火温度大于第二次正火温度;第一次正火:正火温度850℃,保持10min;第二次正火:正火温度800℃,保持5min;回火:采用分段加热,第一段加热温度为560-570℃,到温后保温15-17min,第二段加热温度为690-700℃,保持10min以上;
D.对C步骤所得阀门进行水冷直至室温;
E.对D步骤冷却后的阀门进行表面涂层。
2.根据权利要求1所述的金刚石复合体阀门制造方法,其特征在于,所述表面涂层为碳化钨涂层,且涂层厚度为0.5-1mm。
CN201710409808.9A 2017-06-02 2017-06-02 一种金刚石复合体阀门制造方法 Withdrawn CN107321991A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111270186A (zh) * 2020-03-18 2020-06-12 合肥工业大学 一种金刚石-铁基复合涂层及其作为高温阀门的密封层的应用
CN114029702A (zh) * 2021-10-24 2022-02-11 洪泽东俊机械有限公司 一种喷钨阀板制造工艺
CN115927896A (zh) * 2022-11-16 2023-04-07 四川雄琛科技有限公司 一种用于高压阀门的金刚石截流阀片

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111270186A (zh) * 2020-03-18 2020-06-12 合肥工业大学 一种金刚石-铁基复合涂层及其作为高温阀门的密封层的应用
CN111270186B (zh) * 2020-03-18 2022-04-01 合肥工业大学 一种金刚石-铁基复合涂层及其作为高温阀门的密封层的应用
CN114029702A (zh) * 2021-10-24 2022-02-11 洪泽东俊机械有限公司 一种喷钨阀板制造工艺
CN115927896A (zh) * 2022-11-16 2023-04-07 四川雄琛科技有限公司 一种用于高压阀门的金刚石截流阀片

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Application publication date: 20171107