CN107723421A - A kind of heat treatment quenching process of high-carbon chrome molybdenum vanadium powder bubbing steel precision component - Google Patents

A kind of heat treatment quenching process of high-carbon chrome molybdenum vanadium powder bubbing steel precision component Download PDF

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Publication number
CN107723421A
CN107723421A CN201711217530.1A CN201711217530A CN107723421A CN 107723421 A CN107723421 A CN 107723421A CN 201711217530 A CN201711217530 A CN 201711217530A CN 107723421 A CN107723421 A CN 107723421A
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China
Prior art keywords
workpiece
heat treatment
heated
stove
incubated
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CN201711217530.1A
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Chinese (zh)
Inventor
王涛
焦玉
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湖北工程职业学院
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Priority to CN201711217530.1A priority Critical patent/CN107723421A/en
Publication of CN107723421A publication Critical patent/CN107723421A/en

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Classifications

    • 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 BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • 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 BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/002Heat treatment of ferrous alloys containing Cr
    • 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 BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/008Heat treatment of ferrous alloys containing Si
    • 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 BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
    • C21D2211/00Microstructure comprising significant phases

Abstract

The invention discloses a kind of heat treatment quenching process of high-carbon chrome molybdenum vanadium powder bubbing steel precision component, comprise the following steps:(1) average thickness 32mm workpiece is put into glowing furnace and is preheated to 150 DEG C at twice;(2) a point two level is heated to 1018 DEG C of hardening heat and is incubated in glowing furnace;(3) workpiece is come out of the stove air-cooled to 65 DEG C;(4) workpiece is entered to 510 DEG C of insulation tempering of tempering furnace, air cooling of coming out of the stove twice.The described workpiece by average thickness about 32mm is put into glowing furnace to be preheated at twice, and for the first time with the firing rate less than 75 DEG C/h to 100 DEG C, second with the firing rate less than 115 DEG C/h to 150 DEG C.The present invention reliably ensures the premium properties such as precision component high anti-abrasive wear and high compressive strength, good toughness, the dimensional stability of heat treatment, reaches the requirement of precision component.

Description

A kind of heat treatment quenching process of high-carbon chrome molybdenum vanadium powder bubbing steel precision component

【Technical field】

The invention belongs to bubbing steel material heat treatment field, and in particular to a kind of high-carbon chrome molybdenum vanadium powder bubbing steel precision zero The heat treatment quenching process of part.

【Background technology】

With the upgrading of China's manufacturing industry, requirement of some precision equipments to parts is more and more harsher, and home made materials exists Some aspect of performances can not meet its requirement, have to using related advanced imported material, the particularly country such as Germany, Sweden High purity steel, there is the fine qualities such as pure high crystal grain refinement even tissue, import volume is constantly increasing in recent years, but is heat-treated It is horizontal incompatible therewith, it is difficult to play its performance, cause huge waste, some supply producers have to set special heat at home Service Factory is handled, it is not only difficult to meet its personalized requirement, and cause cost greatly to rise.

ASSAB VANADIS-10 are Sweden's trade mark, and its major alloy composition is 2.9%C 8.0%Cr 1.0%Si 1.5%Mo 9.8%V, it is a kind of Powder High-speed Steels, there is anti-abrasive wear and high compressive strength high after being heat-treated, it is excellent Overall quenching degree, good toughness, heat treatment dimensional stability, excellent anti-temper softening, be particularly suitable for mould with Abrasive wear produces for the long-life of main failure mode, and VANADIS-10 combines high wearability and toughness, is commonly used for Substitute hard alloy (tungsten carbide) material for collapsing angle or cracking in actual applications, conventional 1200 DEG C of hardness of hardening heat HRC56-HRC64;Powdered metallurgical material poor thermal conductivity, alloy composition also have a great influence to Technology for Heating Processing, cause to be heat-treated work Skill is complicated, is such as heat-treated improper not only difficult its premium properties of performance, and quality is also difficult to control, easily scrapped in batches.

【The content of the invention】

In view of this, it is overcome the deficiencies in the prior art, it is accurate that the present invention provides a kind of high-carbon chrome molybdenum vanadium powder bubbing steel The heat treatment quenching process of part, carbide refinement, corner angle rounding, crystal grain refinement, reliably to ensure that its is high can be made The premium properties such as anti-abrasive wear and high compressive strength, good toughness, the dimensional stability of heat treatment, reaches precision component Requirement.

To achieve the above object, technical scheme is as follows:

A kind of heat treatment quenching process of high-carbon chrome molybdenum vanadium powder bubbing steel precision component, comprises the following steps:(1) will be flat Equal thickness 32mm workpiece is put into glowing furnace is preheated to 150 DEG C at twice;(2) a point two level is heated to quenching temperature in glowing furnace 1018 DEG C of degree is simultaneously incubated;(3) workpiece is come out of the stove air-cooled to 65 DEG C;(4) workpiece is entered to 510 DEG C of insulation tempering of tempering furnace twice, gone out Stove air cooling.

The described workpiece by average thickness 32mm is put into glowing furnace to be preheated at twice, for the first time with less than 75 DEG C/it is small When firing rate to 100 DEG C, second with the firing rate less than 115 DEG C/h to 150 DEG C.

A described point two level in glowing furnace is heated to hardening heat and is incubated, and continues to be heated to 830 after workpiece preheating0C And 70min is incubated, it is heated to 1018 DEG C of hardening heat and is incubated 52min.

Workpiece is come out of the stove and placed on support to 65 DEG C by described air-blast quenching that workpiece is come out of the stove, and air blower is opened, by workpiece Air-blast quenching is to 65 DEG C.

It is described that workpiece enters to 510 DEG C of insulation tempering of tempering furnace twice, air cooling of coming out of the stove, when workpiece it is air-cooled to 65 DEG C when immediately Enter tempering furnace and be heated to 510 DEG C to be tempered and be incubated 70min, natural air cooling of coming out of the stove;When workpiece is air-cooled to 65 DEG C second immediately Enter tempering furnace and be heated to 510 DEG C to be tempered and be incubated 52min, natural air cooling of coming out of the stove is to room temperature.

The invention has the advantages that this Technology for Heating Processing can make material internal carbide refinement, corner angle rounding, crystal grain Refinement, reliably to ensure its high anti-abrasive wear and high compressive strength, good toughness, the dimensional stability of heat treatment Deng premium properties, the service life and mechanical property of two edge of a knife parts (punch-pin, cavity plate) are significantly improved.Present invention reality simple to operate It is strong with property, there is higher engineering application value, it, which puts goods on the market, will produce significantly Social benefit and economic benefit.

【Brief description of the drawings】

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.

Fig. 1 is the process flow diagram of the present invention.

Wherein abscissa represents the time, and ordinate represents temperature.

【Embodiment】

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.

A kind of heat treatment quenching process of high-carbon chrome molybdenum vanadium powder bubbing steel precision component, comprises the following steps:(1) will be flat Equal thickness 32mm workpiece is put into glowing furnace is preheated to 150 DEG C at twice;(2) a point two level is heated to quenching temperature in glowing furnace 1018 DEG C of degree is simultaneously incubated;(3) workpiece is come out of the stove air-cooled to 65 DEG C;(4) workpiece is entered to 510 DEG C of insulation tempering of tempering furnace twice, gone out Stove air cooling.

Referring to Fig. 1, embodiment average thickness is 32mm high-carbon chrome molybdenum vanadium powder bubbing steel precision cavity plate, and hardness requirement is HRC62

(1) put the workpiece in glowing furnace and preheat at twice, for the first time with the firing rate less than 75 DEG C/h to 100 DEG C, second with the firing rate less than 115 DEG C/h to 150 DEG C;

(2) workpiece is heated to 830 DEG C in glowing furnace and is incubated 70min, continues to be heated to 1018 DEG C of hardening heat and protect Warm 52min;

(3) workpiece is come out of the stove and placed on support, air blower is opened, by workpiece air-blast quenching;

(4) when workpiece it is air-cooled to 65 DEG C when enter tempering furnace immediately and be heated to 510 DEG C to be tempered and be incubated 120min, nature of coming out of the stove Air cooling;

(5) enter tempering furnace for the second time immediately when workpiece is air-cooled to 65 DEG C and be heated to 510 DEG C to be tempered and be incubated 120min, go out Stove natural air cooling is to room temperature;

(6) workpiece hardness is surveyed sample with hardometer, and splits workpiece polishing section, with crystalline phase group inside microexamination Knit.

Technology for Heating Processing of the present invention uses progressive solution, makes to be uniformly heated;It is different using being tempered three times Thickness has different soaking times, to improve workpiece toughness and anti-impact force;Less difference of hardness is obtained with different quenching, it is full Two edges of a knife of foot have HRC2 difference of hardness, are allowed to more wear-resisting, and the life-span improves.The present invention is simple and easy, has higher engineering should With value, it, which puts goods on the market, will produce significantly Social benefit and economic benefit.It is described above, it is only the present invention preferably tool Body embodiment.This is not limited to, it is any to add without creative work technique according to the invention scheme and its inventive concept With equivalent substitution or change, should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with power The protection domain that sharp claim is limited is defined.

Technology for Heating Processing of the present invention uses progressive solution, makes to be uniformly heated;Using double tempering, material can be made Expect internal carbides refinement, corner angle rounding, crystal grain refinement, reliably to ensure its high anti-abrasive wear and high pressure resistance The premium properties such as degree, good toughness, the dimensional stability of heat treatment, significantly improve making for two edge of a knife parts (punch-pin, cavity plate) With life-span and mechanical property.The present invention is simple and easy, has higher engineering application value, and it, which puts goods on the market, will produce significantly Ground Social benefit and economic benefit.The foregoing is intended to be a preferred embodiment of the present invention.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.

Claims (3)

1. a kind of heat treatment quenching process of high-carbon chrome molybdenum vanadium powder bubbing steel precision component, it is characterised in that including following step Suddenly:(1) workpiece that average thickness is 32mm is put into glowing furnace and is preheated to 150 DEG C at twice;(2) two level is divided in glowing furnace It is heated to 1018 DEG C of hardening heat and is incubated;(3) workpiece is come out of the stove air-cooled to 65 DEG C;(4) workpiece is entered to 510 DEG C of tempering furnace twice Insulation tempering, air cooling of coming out of the stove.
2. a kind of heat treatment quenching process of high-carbon chrome molybdenum vanadium powder bubbing steel precision component as claimed in claim 1, it is special Sign is that point two level in glowing furnace is heated to hardening heat and is incubated, and continues to be heated to 830 DEG C simultaneously after workpiece preheating 70min is incubated, 1018 DEG C of hardening heat is heated to and is incubated 52min.
3. a kind of heat treatment quenching process of high-carbon chrome molybdenum vanadium powder bubbing steel precision component as claimed in claim 1, it is special Sign is, described that workpiece enters to 510 DEG C of insulation tempering of tempering furnace twice, air cooling of coming out of the stove, when workpiece it is air-cooled to 65 DEG C when immediately Enter tempering furnace and be heated to 510 DEG C to be tempered and be incubated 70min, natural air cooling of coming out of the stove;When workpiece is air-cooled to 65 DEG C second immediately Enter tempering furnace and be heated to 510 DEG C to be tempered and be incubated 52min, natural air cooling of coming out of the stove is to room temperature.
CN201711217530.1A 2017-11-28 2017-11-28 A kind of heat treatment quenching process of high-carbon chrome molybdenum vanadium powder bubbing steel precision component CN107723421A (en)

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CN201711217530.1A CN107723421A (en) 2017-11-28 2017-11-28 A kind of heat treatment quenching process of high-carbon chrome molybdenum vanadium powder bubbing steel precision component

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108486320A (en) * 2018-04-22 2018-09-04 黄石高校智源技术咨询服务有限公司 A kind of accurate heat treatment quenching process of high-carbon chrome molybdenum vanadium powder high-speed steel precision component

Citations (4)

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Publication number Priority date Publication date Assignee Title
CN101037760A (en) * 2007-04-03 2007-09-19 西安交通大学 High-carbon high-high-vanadium high-speed steel composite roller and heat treatment method thereof
CN101240402A (en) * 2008-02-04 2008-08-13 向勇 Cast high-boron high-speed steel for composite ring roller and heat treatment method thereof
CN101596553A (en) * 2009-06-26 2009-12-09 北京工业大学 A kind of high speed steel roll collar and manufacture method thereof that is applied to high-speed rod-rolling mill
CN102962423A (en) * 2012-11-28 2013-03-13 江苏共昌轧辊股份有限公司 Centrifugal high-carbon, high-boron and high-speed steel composite roller shell and fabrication method of combined roller of composite roller shell

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101037760A (en) * 2007-04-03 2007-09-19 西安交通大学 High-carbon high-high-vanadium high-speed steel composite roller and heat treatment method thereof
CN101240402A (en) * 2008-02-04 2008-08-13 向勇 Cast high-boron high-speed steel for composite ring roller and heat treatment method thereof
CN101596553A (en) * 2009-06-26 2009-12-09 北京工业大学 A kind of high speed steel roll collar and manufacture method thereof that is applied to high-speed rod-rolling mill
CN102962423A (en) * 2012-11-28 2013-03-13 江苏共昌轧辊股份有限公司 Centrifugal high-carbon, high-boron and high-speed steel composite roller shell and fabrication method of combined roller of composite roller shell

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108486320A (en) * 2018-04-22 2018-09-04 黄石高校智源技术咨询服务有限公司 A kind of accurate heat treatment quenching process of high-carbon chrome molybdenum vanadium powder high-speed steel precision component

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Application publication date: 20180223