CN105714090A - New steel rolling wheel heat treatment technology - Google Patents

New steel rolling wheel heat treatment technology Download PDF

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Publication number
CN105714090A
CN105714090A CN201410719498.7A CN201410719498A CN105714090A CN 105714090 A CN105714090 A CN 105714090A CN 201410719498 A CN201410719498 A CN 201410719498A CN 105714090 A CN105714090 A CN 105714090A
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CN
China
Prior art keywords
tempering
temperature
heating
steel rolling
heat treatment
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
CN201410719498.7A
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Chinese (zh)
Inventor
车海波
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.)
Chongqing Yegao Furniture Co Ltd
Original Assignee
Chongqing Yegao Furniture Co Ltd
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 Chongqing Yegao Furniture Co Ltd filed Critical Chongqing Yegao Furniture Co Ltd
Priority to CN201410719498.7A priority Critical patent/CN105714090A/en
Publication of CN105714090A publication Critical patent/CN105714090A/en
Pending legal-status Critical Current

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Abstract

The present invention discloses a new steel rolling wheel heat treatment technology characterized by using 9SiCr as a material, the technology comprises the following steps: (1) preheating, to be more specific, heating in a salt bath furnace to 580-600 DEG C in a heating rate of 30-50 DEG C / h, and thermally insulating for 50-80min; (2) quenching, to be more specific, heating to temperature of 850-860 DEG C in a heating rate of 20-30 DEG C / h; thermally insulating for 30-60min, quenching at quenching temperature of 200-220 DEG C for 2-2.5h, using a nitrate for cooling; (3) first tempering, to be more specific, tempering at tempering temperature of 240-280 DEG C, and thermally insulating for 2-2.5h; and (4) second tempering, to be more specific, tempering at tempering temperature of 240-280 DEG C, and thermally insulating for 2-3h. The new steel rolling wheel heat treatment technology can improve surface hardness, cutting toughness and service life of a Cr12MoV steel rolling wire wheel.

Description

A kind of Technology for Heating Processing of Novel steel cylindrical die roll
Technical field
The invention belongs to Technology for Heating Processing field, specifically the Technology for Heating Processing of a kind of Novel steel cylindrical die roll.
Background technology
Cylindrical die roll is external thread rolling tool.At screw tool and standard component maker, cylindrical die roll is frock crucial in production process and important cutter, the height in its life-span and the quality of quality directly influence the precision of the workpiece such as the screw tap, the standard component that process, manufacturing schedule are brought material impact simultaneously.Therefore, the crudy of cylindrical die roll seems particularly critical.Cylindrical die roll was lost efficacy and carried out statistical analysis it can be seen that heat treatment is undoubtedly topmost influence factor.Prior art is generally adopted Cr12MoV steel cylindrical die roll, and result of use is less than satisfactory, and its failure mode is often tipping.
Summary of the invention
It is an object of the invention to for Shortcomings part in above-mentioned technology, the present invention provides the Technology for Heating Processing of a kind of Novel steel cylindrical die roll, and hardness is higher, has good toughness and plasticity, reduces tipping defect, improves service life.
The technical scheme realizing the object of the invention is as follows:
The Technology for Heating Processing of a kind of Novel steel cylindrical die roll, is characterised by, adopts 9SiCr material, comprises the following steps that:
(1) preheating: in salt bath furnace, heating is to 580-600 DEG C, firing rate 30-50 DEG C/h, is incubated 50-80min;
(2) Quenching Treatment: heating-up temperature 850-860 DEG C, firing rate 20-30 DEG C/h;Insulation 30-60min, hardening heat 200~220 DEG C, time 2-2.5h, adopt salt made from earth containing a comparatively high percentage of sodium chloride cooling;
(3) first tempering: temperature 240-280 DEG C, are incubated 2-2.5h;
(4) second tempering: temperature 240-280 DEG C, are incubated 2-3h.
The present invention provides the Technology for Heating Processing of a kind of Novel steel cylindrical die roll, and hardness is higher, has good toughness and plasticity, reduces tipping defect, improves service life.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
The Technology for Heating Processing of a kind of Novel steel cylindrical die roll, adopts 9SiCr material, comprises the following steps that:
(1) preheating: in salt bath furnace, heating is to 590 DEG C, 35 DEG C/h of firing rate, is incubated 50-80min;
(2) Quenching Treatment: heating-up temperature 850 DEG C, 25 DEG C/h of firing rate;Insulation 50min, hardening heat 210 DEG C, time 2h, adopt salt made from earth containing a comparatively high percentage of sodium chloride cooling;
(3) first tempering: temperature 250 DEG C, are incubated 2h;
(4) second tempering: temperature 250 DEG C, are incubated 2.5h.
The Technology for Heating Processing of a kind of Novel steel cylindrical die roll of the present invention, can improve the case hardness of Cr12MoV steel cylindrical die roll, cutting toughness, improve service life.
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work.All technical staff in the art, all should in the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.

Claims (1)

1. a Technology for Heating Processing for Novel steel cylindrical die roll, is characterised by, adopts 9SiCr material, comprises the following steps that:
(1) preheating: in salt bath furnace, heating is to 580-600 DEG C, firing rate 30-50 DEG C/h, is incubated 50-80min;
(2) Quenching Treatment: heating-up temperature 850-860 DEG C, firing rate 20-30 DEG C/h;Insulation 30-60min, hardening heat 200~220 DEG C, time 2-2.5h, adopt salt made from earth containing a comparatively high percentage of sodium chloride cooling;
(3) first tempering: temperature 240-280 DEG C, are incubated 2-2.5h;
(4) second tempering: temperature 240-280 DEG C, are incubated 2-3h.
CN201410719498.7A 2014-12-03 2014-12-03 New steel rolling wheel heat treatment technology Pending CN105714090A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410719498.7A CN105714090A (en) 2014-12-03 2014-12-03 New steel rolling wheel heat treatment technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410719498.7A CN105714090A (en) 2014-12-03 2014-12-03 New steel rolling wheel heat treatment technology

Publications (1)

Publication Number Publication Date
CN105714090A true CN105714090A (en) 2016-06-29

Family

ID=56146511

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410719498.7A Pending CN105714090A (en) 2014-12-03 2014-12-03 New steel rolling wheel heat treatment technology

Country Status (1)

Country Link
CN (1) CN105714090A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109338060A (en) * 2018-12-11 2019-02-15 重庆世潮机械有限公司 A kind of cylindrical die roll process for preparing raw material
CN109385506A (en) * 2018-12-11 2019-02-26 重庆世潮机械有限公司 A kind of cylindrical die roll quenching technical

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109338060A (en) * 2018-12-11 2019-02-15 重庆世潮机械有限公司 A kind of cylindrical die roll process for preparing raw material
CN109385506A (en) * 2018-12-11 2019-02-26 重庆世潮机械有限公司 A kind of cylindrical die roll quenching technical

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Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160629

WD01 Invention patent application deemed withdrawn after publication