CN104480424A - Method for nitriding nitrided steel 135 material - Google Patents

Method for nitriding nitrided steel 135 material Download PDF

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Publication number
CN104480424A
CN104480424A CN201410716905.9A CN201410716905A CN104480424A CN 104480424 A CN104480424 A CN 104480424A CN 201410716905 A CN201410716905 A CN 201410716905A CN 104480424 A CN104480424 A CN 104480424A
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Prior art keywords
nitriding
sample
temperature
quenching
cleaned
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CN201410716905.9A
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CN104480424B (en
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蔡桂珍
杨亚先
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Guizhou Honglin Machinery Co Ltd
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Guizhou Honglin Machinery Co Ltd
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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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding of ferrous surfaces

Abstract

The invention discloses a method for nitriding a nitrided steel 135 material. The method comprises the following steps: quenching and tempering before nitriding; carrying out a nitriding process, namely cleaning surface oil of a sample with gasoline and acetone, blowing sand to the sample with low-air pressure fine sand, putting the sample into a charging tray in a precise controllable atmosphere nitriding furnace, covering with a furnace lid, and introducing dried liquid ammonia, wherein at the first stage, the nitriding temperature is 512-520 DEG C, the heat preservation time is 1-1.5h, and nitrogen potential (Kn) is 6.3-8; at the second stage, the nitriding temperature is 520-555 DEG C, the heat preservation time is 6-10.5h, and nitrogen potential (Kn) is 0.65; the temperature when the heat preservation is ended is smaller than 100 DEG C. According to the method disclosed by the invention, the surface hardness, the abrasive resistance and the corrosion resistance of a steel piece can be improved.

Description

A kind of nitriding method of nitriding steel 135 material
Technical field
The invention belongs to technical field of heat treatment technology, what relate in particular to is a kind of nitriding method of nitriding steel 135 material.
Background technology
Nitriding steel 135 belongs to the external alloy junction hook steel trade mark, and its alloy composition is: C:0.38-0.43%, Cr:1.6%, Mo:0.35%, AL:1.13%, AL element improves the hardness of nitride layer strongly, and Cr, Mo element takes second place.Thermal treatment for this material generally adopts modifier treatment, keeps its comprehensive mechanical performance, but specimen surface wear resistance, corrosion stability are bad.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming and a kind of nitriding method of nitriding steel 135 material that can improve steel object surface hardness, wear resistance, erosion resistance provided.
The nitriding method of a kind of nitriding steel 135 material of the present invention, comprises the following steps:
(1) modifier treatment before nitriding:
A, with gasoline, sample to be cleaned up.
B, cleaned sample is put into vacuum oil quenching, carries out quenching, temper, processing parameter is as follows:
Quenching temperature: 940 ± 10 DEG C, soaking time: 120-180 minute, oil cooling
Tempering temperature: 590 ± 10 DEG C, soaking time: 180-210 minute, air cooling;
C, the sample after tempering of quenching is processed into tensile test bar, its mechanical property requirements is as follows:
Tensile strength (UTS): 150-200KSI
Hardness requirement: >=34HRC
(2) nitridation process
A, sample gasoline and acetone are cleaned up surface and oil contaminant
B, with low blast fine sand, sample is carried out blast.
C, then sample to be put on the charging tray of accurate controlled atmosphere nitriding furnace, build bell, pass into liquefied ammonia after drying.
D, first stage: nitriding temperature 512-520 DEG C, insulation 1-1.5h, nitrogen gesture (Kn) 6.3-8; Subordinate phase: nitriding temperature 520-555 DEG C, insulation 6-10.5h, nitrogen gesture (Kn) 0.65.Insulation end temp is less than 100 DEG C.
The nitriding method of above-mentioned a kind of nitriding steel 135 material, wherein: sample is first processed into the specification of φ 15x100.
The present invention compared with prior art, has obvious beneficial effect, as can be known from the above technical solutions: the present invention is higher according to nitriding temperature, nitridation time is longer, hardness has a declining tendency, but depth of penetration extends more and more darker in time, and Nitric white has substantial connection with nitrogen gesture (Kn).By selecting nitriding temperature and time to obtain required surface hardness and depth of penetration after nitrogenize, decide nitride layer tissue by selecting nitrogen gesture (Kn).Adopt nitriding steel 135 material to make sample, sample is cleaned, then after blast process removal surface film oxide; Sample is loaded in accurate controlled atmosphere nitriding furnace, be divided into two stages to carry out nitriding treatment, make the surface hardness of material, depth of penetration, white, metallographic structure etc. precisely controlled.The present invention can improve steel object surface hardness, wear resistance, erosion resistance, may be used on the structural alloy steel that other are similar.
The specific embodiment of the present invention is provided in detail by following examples.
Embodiment
Describe the present invention below in conjunction with example, explain and illustrate technical scheme feature of the present invention further.
embodiment 1
A nitriding method for nitriding steel 135 material, comprises the following steps:
(1) modifier treatment before nitriding:
A, sample are processed into the specification of φ 15x100, are then cleaned up by sample with gasoline.
B, cleaned sample is put into vacuum oil quenching, carries out quenching, temper, processing parameter is as follows:
Quenching temperature: 940 ± 10 DEG C, soaking time: 120-180 minute, oil cooling
Tempering temperature: 590 ± 10 DEG C, soaking time: 180-210 minute, air cooling;
C, the sample after tempering of quenching is processed into tensile test bar, its mechanical property requirements is as follows:
Tensile strength (UTS): 150-200KSI
Hardness requirement: >=34HRC
(2) nitridation process
A, sample gasoline and acetone are cleaned up surface and oil contaminant
B, with low blast fine sand, sample is carried out blast.
C, then sample to be put on the charging tray of accurate controlled atmosphere nitriding furnace, build bell, pass into liquefied ammonia after drying.
D, first stage: nitriding temperature 512 DEG C, insulation 1.5h, nitrogen gesture (Kn) 8; Subordinate phase: nitriding temperature 550 DEG C, insulation 6h, nitrogen gesture (Kn) 0.65.Insulation end temp is less than 100 DEG C.
Detected result: surface hardness: 94HR15N, depth of penetration: 0.19mm, fragility: I grade, white: 2 μm, tissue: without netted.
embodiment 2
A nitriding method for nitriding steel 135 material, comprises the following steps:
(1) modifier treatment before nitriding:
A, sample are processed into the specification of φ 15x100, are then cleaned up by sample with gasoline.
B, cleaned sample is put into vacuum oil quenching, carries out quenching, temper, processing parameter is as follows:
Quenching temperature: 940 ± 10 DEG C, soaking time: 120-180 minute, oil cooling
Tempering temperature: 590 ± 10 DEG C, soaking time: 180-210 minute, air cooling;
C, the sample after tempering of quenching is processed into tensile test bar, its mechanical property requirements is as follows:
Tensile strength (UTS): 150-200KSI
Hardness requirement: >=34HRC
(2) nitridation process
A, sample gasoline and acetone are cleaned up surface and oil contaminant
B, with low blast fine sand, sample is carried out blast.
C, then sample to be put on the charging tray of accurate controlled atmosphere nitriding furnace, build bell, pass into liquefied ammonia after drying.
D, first stage: nitriding temperature 520 DEG C, insulation 1h, nitrogen gesture (Kn) 6.6; Subordinate phase: nitriding temperature 555 DEG C, insulation 7h, nitrogen gesture (Kn) 0.65.Insulation end temp is less than 100 DEG C.
Detected result: surface hardness: 93.7HR15N, depth of penetration: 0.23mm, fragility: I grade, white: 0 μm, tissue: without netted.
                         
embodiment 3
A nitriding method for nitriding steel 135 material, comprises the following steps:
(1) modifier treatment before nitriding:
A, sample are processed into the specification of φ 15x100, are then cleaned up by sample with gasoline.
B, cleaned sample is put into vacuum oil quenching, carries out quenching, temper, processing parameter is as follows:
Quenching temperature: 940 ± 10 DEG C, soaking time: 120-180 minute, oil cooling
Tempering temperature: 590 ± 10 DEG C, soaking time: 180-210 minute, air cooling;
C, the sample after tempering of quenching is processed into tensile test bar, its mechanical property requirements is as follows:
Tensile strength (UTS): 150-200KSI
Hardness requirement: >=34HRC
(2) nitridation process
A, sample gasoline and acetone are cleaned up surface and oil contaminant
B, with low blast fine sand, sample is carried out blast.
C, then sample to be put on the charging tray of accurate controlled atmosphere nitriding furnace, build bell, pass into liquefied ammonia after drying.
D, first stage: nitriding temperature 520 DEG C, insulation 1h, nitrogen gesture (Kn) 6.3; Subordinate phase: nitriding temperature 555 DEG C, insulation 10.5h, nitrogen gesture (Kn) 0.65.Insulation end temp is less than 100 DEG C.
Detected result: surface hardness: 93.6HR15N, depth of penetration: 0.29mm, fragility: I grade, white: 0 μm, tissue: without netted.

Claims (3)

1. a nitriding method for nitriding steel 135 material, comprises the following steps:
(1) modifier treatment before nitriding:
A, with gasoline, sample to be cleaned up;
B, cleaned sample is put into vacuum oil quenching, carries out quenching, temper, processing parameter is as follows:
Quenching temperature: 940 ± 10 DEG C, soaking time: 120-180 minute, oil cooling
Tempering temperature: 590 ± 10 DEG C, soaking time: 180-210 minute, air cooling;
(2) nitridation process
A, sample gasoline and acetone are cleaned up surface and oil contaminant
B, with low blast fine sand, sample is carried out blast;
C, then sample to be put on the charging tray of accurate controlled atmosphere nitriding furnace, build bell, pass into liquefied ammonia after drying;
D, first stage: nitriding temperature 512-520 DEG C, insulation 1-1.5h, nitrogen gesture (Kn) 6.3-8; Subordinate phase: nitriding temperature 520-555 DEG C, insulation 6-10.5h, nitrogen gesture (Kn) 0.65; Insulation end temp is less than 100 DEG C.
2. the nitriding method of a kind of nitriding steel 135 material as claimed in claim 1, wherein: c, the sample after tempering of quenching is processed into tensile test bar, its mechanical property requirements is as follows:
Tensile strength (UTS): 150-200KSI
Hardness requirement: >=34HRC.
3. the nitriding method of a kind of nitriding steel 135 material as claimed in claim 1 or 2, wherein: sample is first processed into the specification of φ 15x100.
CN201410716905.9A 2014-12-02 2014-12-02 Method for nitriding nitrided steel 135 material Active CN104480424B (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104820002A (en) * 2015-04-16 2015-08-05 山东大学 Quenched steel machining white layer detection method based on electrochemical detection device
CN105238913A (en) * 2015-11-02 2016-01-13 杭州持正科技股份有限公司 Pin shaft of engine timing chain and tufftriding process
CN105886882A (en) * 2016-05-26 2016-08-24 合肥和安机械制造有限公司 Method for preparing forklift parking brake disc
CN106244979A (en) * 2016-08-30 2016-12-21 贵州红林机械有限公司 A kind of method of carbon Chromador Nitric white hardness in raising
CN107779810A (en) * 2017-12-24 2018-03-09 中国航发贵州红林航空动力控制科技有限公司 A kind of 4Cr14Ni14W2The technique of Mo heat resisting steel rapid ion nitridings
CN107923028A (en) * 2015-09-08 2018-04-17 新日铁住金株式会社 Nitrogen treatment steel part and its manufacture method
CN108220870A (en) * 2018-01-23 2018-06-29 滁州英诺信电器有限公司 A kind of handware surfacecti proteon treatment process
CN109988991A (en) * 2019-04-16 2019-07-09 苏州艾盾合金材料有限公司 A kind of depth Nitriding Compound alloy bushing and cylinder and preparation method thereof
CN110914467A (en) * 2017-07-07 2020-03-24 帕卡热处理工业株式会社 Surface hardening treatment device and surface hardening treatment method
CN112593156A (en) * 2020-12-09 2021-04-02 重庆红江机械有限责任公司 Application of novel nitrided steel in manufacturing of diesel engine plunger and barrel assembly
CN115058681A (en) * 2022-06-28 2022-09-16 江苏华东三和兴模具材料有限公司 Nitriding production process for prolonging service life of die-casting die

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CN101343978A (en) * 2008-08-05 2009-01-14 李保顺 High-wind pressure impactor piston
CN101649441A (en) * 2008-08-12 2010-02-17 贵州红林机械有限公司 Process method for nitriding austenitic stainless steel material
JP2010229524A (en) * 2009-03-27 2010-10-14 Toyota Motor Corp Nitriding quenching method
CN102168275A (en) * 2011-04-02 2011-08-31 上海电机学院 Heat treatment technology for improving the surface hardness of precise rolling ball bearing

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Publication number Priority date Publication date Assignee Title
CN1067684A (en) * 1991-06-15 1993-01-06 徐厚国 Hot treating method for elastic parts
CN101343978A (en) * 2008-08-05 2009-01-14 李保顺 High-wind pressure impactor piston
CN101649441A (en) * 2008-08-12 2010-02-17 贵州红林机械有限公司 Process method for nitriding austenitic stainless steel material
JP2010229524A (en) * 2009-03-27 2010-10-14 Toyota Motor Corp Nitriding quenching method
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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104820002A (en) * 2015-04-16 2015-08-05 山东大学 Quenched steel machining white layer detection method based on electrochemical detection device
CN107923028B (en) * 2015-09-08 2020-01-24 日本制铁株式会社 Nitrided steel member and method for producing same
US10837096B2 (en) 2015-09-08 2020-11-17 Nippon Steel Corporation Nitrided steel part and method of production of same
CN107923028A (en) * 2015-09-08 2018-04-17 新日铁住金株式会社 Nitrogen treatment steel part and its manufacture method
CN105238913A (en) * 2015-11-02 2016-01-13 杭州持正科技股份有限公司 Pin shaft of engine timing chain and tufftriding process
CN105886882A (en) * 2016-05-26 2016-08-24 合肥和安机械制造有限公司 Method for preparing forklift parking brake disc
CN106244979A (en) * 2016-08-30 2016-12-21 贵州红林机械有限公司 A kind of method of carbon Chromador Nitric white hardness in raising
CN110914467A (en) * 2017-07-07 2020-03-24 帕卡热处理工业株式会社 Surface hardening treatment device and surface hardening treatment method
US11155891B2 (en) 2017-07-07 2021-10-26 Parker Netsushori Kogyo Co., Ltd. Surface hardening treatment device and surface hardening treatment method
CN107779810B (en) * 2017-12-24 2019-04-19 中国航发贵州红林航空动力控制科技有限公司 A kind of 4Cr14Ni14W2The technique of Mo heat resisting steel rapid ion nitriding
CN107779810A (en) * 2017-12-24 2018-03-09 中国航发贵州红林航空动力控制科技有限公司 A kind of 4Cr14Ni14W2The technique of Mo heat resisting steel rapid ion nitridings
CN108220870A (en) * 2018-01-23 2018-06-29 滁州英诺信电器有限公司 A kind of handware surfacecti proteon treatment process
CN109988991A (en) * 2019-04-16 2019-07-09 苏州艾盾合金材料有限公司 A kind of depth Nitriding Compound alloy bushing and cylinder and preparation method thereof
CN112593156A (en) * 2020-12-09 2021-04-02 重庆红江机械有限责任公司 Application of novel nitrided steel in manufacturing of diesel engine plunger and barrel assembly
CN115058681A (en) * 2022-06-28 2022-09-16 江苏华东三和兴模具材料有限公司 Nitriding production process for prolonging service life of die-casting die

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