CN105886706A - Heat treatment technology for stainless steel workpieces - Google Patents

Heat treatment technology for stainless steel workpieces Download PDF

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Publication number
CN105886706A
CN105886706A CN201410431800.9A CN201410431800A CN105886706A CN 105886706 A CN105886706 A CN 105886706A CN 201410431800 A CN201410431800 A CN 201410431800A CN 105886706 A CN105886706 A CN 105886706A
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CN
China
Prior art keywords
temperature
rustless steel
stainless steel
heating
treatment technology
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410431800.9A
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Chinese (zh)
Inventor
钱兴达
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Yinzhou Xingda Tourism Products Factory
Original Assignee
Ningbo Yinzhou Xingda Tourism Products Factory
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Yinzhou Xingda Tourism Products Factory filed Critical Ningbo Yinzhou Xingda Tourism Products Factory
Priority to CN201410431800.9A priority Critical patent/CN105886706A/en
Publication of CN105886706A publication Critical patent/CN105886706A/en
Pending legal-status Critical Current

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Abstract

The invention provides a heat treatment technology for stainless steel workpieces. The heat treatment technology comprises the following steps: quenching, heating a stainless steel workpiece to 930-960 DEG C, keeping the temperature for 2.5-3.5 h, oil-cooling the stainless steel workpiece, and taking out the stainless steel workpiece when surface temperature of the stainless steel workpiece is less than or equal to 110 DEG C; carrying out medium-temperature tempering, putting the quenched stainless steel workpiece into a heating furnace and heating to 400-450 DEG C, keeping the temperature for 8-10 h, taking out the stainless steel workpiece and air-cooling the workpiece to room temperature. According to the stainless steel heat-treatment technology, oil quenching is carried out after heating so as to reduce stress generated during the cooling and avoid deformation and simultaneously enhance surface hardness of the stainless steel workpiece. Through medium-temperature tempering, a tempered troostite is obtained, and high elasticity and yield point and proper toughness are achieved.

Description

A kind of rustless steel product Technology for Heating Processing
Technical field
The present invention relates to a kind of Technology for Heating Processing, particularly to a kind of rustless steel product Technology for Heating Processing.
Background technology
Rustless steel is the abbreviation of stainless acid resistant steel, the weak corrosive medium such as resistance to air, steam, water or have The steel grade of rustless property is referred to as rustless steel;And resistant to chemical media is corroded chemical etchings such as () acid, alkali, salt Steel grade be referred to as acid resisting steel.The corrosion resistance making them due to both differences in chemical composition is different, Common stainless steel general not resistant to chemical media corrosion, acid resisting steel the most generally individually has rustless property.Due to Having above characteristic, the most stainless use is more and more extensive, but, traditional rustless steel product Affected by production technology so that it is case hardness is low, elastic limit, yield point and toughness can not meet Design requirement.
Summary of the invention
[1] to solve the technical problem that
The technical problem to be solved in the present invention is to overcome deficiency of the prior art, it is provided that one can produce Go out the rustless steel product Technology for Heating Processing of case hardness height, elastic limit, yield point and good toughness.
[2] technical scheme of problem is solved
The present invention provides a kind of rustless steel product Technology for Heating Processing, and it comprises the following steps:
A, quenching, be heated to 930 DEG C~960 DEG C by rustless steel product, and insulation 2.5~3.5 at such a temperature Hour, afterwards described rustless steel product is carried out oil cold, when described rustless steel article surface temperature≤ Take out when 110 DEG C;
B, average tempering, be heated to 400 in the rustless steel product completing quenching is placed on heating furnace DEG C~450 DEG C, and at such a temperature insulation 8~10 hours, afterwards by rustless steel product take out and air cooling extremely Room temperature.
Further, in step, rustless steel product is heated to 950 DEG C, and at such a temperature It is incubated 3 hours, afterwards described rustless steel product is carried out oil cold, when described rustless steel article surface temperature Degree takes out when≤110 DEG C.
Further, in stepb, add in the rustless steel product completing quenching being placed on heating furnace Heat is to 430 DEG C~440 DEG C, and insulation 9 hours at such a temperature, is taken out also by rustless steel product afterwards Air cooling is to room temperature.
[3] beneficial effect
Rustless steel product Technology for Heating Processing of the present invention, heated after carry out oil quenchinng, reduce in cooling The stress produced, it is to avoid deformation, improves the case hardness of rustless steel product simultaneously;Return through middle temperature Fire, obtains secondary troostite so that it is have higher elasticity and yield point and suitable toughness.
Detailed description of the invention
The present invention provides a kind of rustless steel product Technology for Heating Processing, and it comprises the following steps:
A, quenching, be heated to 930 DEG C~960 DEG C with heating furnace by rustless steel product, and at such a temperature It is incubated 2.5~3.5 hours, afterwards this rustless steel product is carried out oil cold, when rustless steel article surface temperature Take out when≤110 DEG C;
B, average tempering, be heated to 400 in the rustless steel product completing quenching is placed on heating furnace DEG C~450 DEG C, and at such a temperature insulation 8~10 hours, afterwards by rustless steel product take out and air cooling extremely Room temperature.
In order to reach more preferable thermal effectiveness, rustless steel product is heated to 950 DEG C, and in this temperature The lower insulation of degree 3 hours, carries out oil cold, when rustless steel article surface temperature afterwards by this rustless steel product Take out when≤110 DEG C;
It is heated to 430 DEG C~440 DEG C in the rustless steel product completing quenching is placed on heating furnace, and It is incubated 9 hours at a temperature of Gai, afterwards rustless steel product is taken out and air cooling is to room temperature.
Rustless steel product Technology for Heating Processing of the present invention, heated after carry out oil quenchinng, reduce in cooling The stress produced, it is to avoid deformation, improves the case hardness of rustless steel product simultaneously;Return through middle temperature Fire, obtains secondary troostite so that it is have higher elasticity and yield point and suitable toughness.

Claims (3)

1. a rustless steel product Technology for Heating Processing, it is characterised in that comprise the following steps:
A, quenching, be heated to rustless steel product 930 DEG C~960 DEG C, and protect at such a temperature Temperature 2.5~3.5 hours, carries out oil cold, when described stainless steel afterwards by described rustless steel product Part surface temperature is taken out when≤110 DEG C;
B, average tempering, be heated in the rustless steel product completing quenching is placed on heating furnace 400 DEG C~450 DEG C, and insulation 8~10 hours at such a temperature, take out rustless steel product afterwards And air cooling is to room temperature.
2. rust steelwork Technology for Heating Processing as claimed in claim 1, it is characterised in that: In step A, rustless steel product is heated to 950 DEG C, and insulation 3 hours at such a temperature, Afterwards described rustless steel product is carried out oil cold, when described rustless steel article surface temperature≤ Take out when 110 DEG C.
3. rust steelwork Technology for Heating Processing as claimed in claim 1, it is characterised in that: In step B, in the rustless steel product completing quenching is placed on heating furnace, it is heated to 430 DEG C ~440 DEG C, and insulation 9 hours at such a temperature, afterwards by rustless steel product taking-up also air cooling extremely Room temperature.
CN201410431800.9A 2014-08-26 2014-08-26 Heat treatment technology for stainless steel workpieces Pending CN105886706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410431800.9A CN105886706A (en) 2014-08-26 2014-08-26 Heat treatment technology for stainless steel workpieces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410431800.9A CN105886706A (en) 2014-08-26 2014-08-26 Heat treatment technology for stainless steel workpieces

Publications (1)

Publication Number Publication Date
CN105886706A true CN105886706A (en) 2016-08-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410431800.9A Pending CN105886706A (en) 2014-08-26 2014-08-26 Heat treatment technology for stainless steel workpieces

Country Status (1)

Country Link
CN (1) CN105886706A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107723423A (en) * 2017-11-28 2018-02-23 湖北工程职业学院 A kind of heat treatment quenching process of acid-resistant stainless steel precision component

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107723423A (en) * 2017-11-28 2018-02-23 湖北工程职业学院 A kind of heat treatment quenching process of acid-resistant stainless steel precision component

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Application publication date: 20160824

WD01 Invention patent application deemed withdrawn after publication