CN105986115A - Control method for cooling process of heat treatment - Google Patents
Control method for cooling process of heat treatment Download PDFInfo
- Publication number
- CN105986115A CN105986115A CN201510049351.6A CN201510049351A CN105986115A CN 105986115 A CN105986115 A CN 105986115A CN 201510049351 A CN201510049351 A CN 201510049351A CN 105986115 A CN105986115 A CN 105986115A
- Authority
- CN
- China
- Prior art keywords
- workpiece
- cooling
- quenching
- medium
- time
- 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
Links
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a control method for the cooling process of heat treatment. According to the control method, 1) the temperature of a workpiece is controlled to be 300 DEG C during tempering and charging after cooling; 4) for quenching of a small workpiece, if a cooling tank is too far from a heating furnace to ensure cooling effect, a small water tank is temporarily used so as to guarantee that the workpiece can be timely put in a cooling medium after discharging for desired cooling effect; 6) thin plate members and long shaft members are laterally and straightly immersed in a quenching medium to reduce deformation in quenching, or are put on a large flat plate and immersed into the medium together with the large flat plate so as to deformation; 7) if a workpiece for quenching in double solutions has a concave groove or die cavity, accumulated water is totally poured after the workpiece is taken out from water, and then the workpiece is put into an oil tank for cooling, wherein oil temperature in the oil tank is properly 150 to 200 DEG C (wherein the workpiece slightly smokes); and 8) a quenched workpiece is subjected to tempering in time and is normally returned to the furnace within 2 hours. The control method provided by the invention is reasonable in procedure and low in manufacturing cost.
Description
Technical field
The present invention relates to the control method of a kind of heat treatment cooling procedure.
Background technology
The control method of existing heat treatment cooling procedure exists that procedure arrangement is unreasonable, operation is various, higher to operator's skill requirement so that production cost is higher.
Summary of the invention
Because the drawbacks described above of prior art, the technical problem to be solved be to provide a kind of operation rationally, the control method of the heat treatment cooling procedure of low cost of manufacture.
For achieving the above object, the invention provides
The control method of a kind of heat treatment cooling procedure, comprises the steps:
1), in order to ensure the cooling effect of heat treatment, normalizing workpiece should hang lower dispersion air cooling from stove when cooling, want cushion block padded under workpiece, and surrounding to retain certain space ventilator；When being tempered shove charge after cooling, the temperature of workpiece should control at 300 DEG C；
2), workpiece quenching time, should first start the blood circulation of cooling medium (water or oil)；Workpiece to swing back and forth to increase cooling effect after immersing medium, finds that medium liquid measure should be replenished time inadequate in time；
3) it is noted that fire safety when, workpiece immerses oil medium；
4), smallclothes quenching, if cooling bath from heating furnace too away from affect cooling effect time, should be temporarily with little water (oily) groove, to ensure that workpiece can be put into cooling medium in time and obtain due cooling effect after coming out of the stove；
5), for high-alloy steel (such as 3Cr2w8v), when high temperature quenching is easily split, then pre-cooling is answered once to place in hardening media after coming out of the stove, to prevent thermal stress from producing hardening flaw；
6), for sheet member and long shaft parts, deformation during for reducing quenching, should try one's best lateral and directly to immersion hardening media, or be put on massive plate and immerse medium together, to reduce deformation；
7), for the workpiece of double quenching, if fluted or die cavity, then from water out after, place into oil groove cooling after answering evacuation hydrops；General oil groove oil outlet temperature is advisable with 150～200 DEG C (workpiece slightly emits blue or green cigarette)；
8), quenching after workpiece must be tempered in time, typically do not exceed 2 hours and melt down.
The invention has the beneficial effects as follows: operation of the present invention is reasonable, low cost of manufacture.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
The control method of a kind of heat treatment cooling procedure, comprises the steps:
1), in order to ensure the cooling effect of heat treatment, normalizing workpiece should hang lower dispersion air cooling from stove when cooling, want cushion block padded under workpiece, and surrounding to retain certain space ventilator；When being tempered shove charge after cooling, the temperature of workpiece should control at 300 DEG C；
2), workpiece quenching time, should first start the blood circulation of cooling medium (water or oil)；Workpiece to swing back and forth to increase cooling effect after immersing medium, finds that medium liquid measure should be replenished time inadequate in time；
3) it is noted that fire safety when, workpiece immerses oil medium；
4), smallclothes quenching, if cooling bath from heating furnace too away from affect cooling effect time, should be temporarily with little water (oily) groove, to ensure that workpiece can be put into cooling medium in time and obtain due cooling effect after coming out of the stove；
5), for high-alloy steel (such as 3Cr2w8v), when high temperature quenching is easily split, then pre-cooling is answered once to place in hardening media after coming out of the stove, to prevent thermal stress from producing hardening flaw；
6), for sheet member and long shaft parts, deformation during for reducing quenching, should try one's best lateral and directly to immersion hardening media, or be put on massive plate and immerse medium together, to reduce deformation；
7), for the workpiece of double quenching, if fluted or die cavity, then from water out after, place into oil groove cooling after answering evacuation hydrops；General oil groove oil outlet temperature is advisable with 150～200 DEG C (workpiece slightly emits blue or green cigarette)；
8), quenching after workpiece must be tempered in time, typically do not exceed 2 hours and melt down.
Claims (1)
1. a control method for heat treatment cooling procedure, is characterized in that: comprise the steps:
1), in order to ensure the cooling effect of heat treatment, normalizing workpiece should hang lower dispersion air cooling from stove when cooling, want cushion block padded under workpiece, and surrounding to retain certain space ventilator；When being tempered shove charge after cooling, the temperature of workpiece should control at 300 DEG C；
2), workpiece quenching time, should first start the blood circulation of cooling medium；Workpiece to swing back and forth to increase cooling effect after immersing medium, finds that medium liquid measure should be replenished time inadequate in time；
3) it is noted that fire safety when, workpiece immerses oil medium；
4), smallclothes quenching, if cooling bath from heating furnace too away from affect cooling effect time, little tank should be used, to ensure that workpiece can be put into cooling medium in time and obtain due cooling effect after coming out of the stove temporarily；
5), for high-alloy steel, when high temperature quenching is easily split, then pre-cooling is answered once to place in hardening media after coming out of the stove, to prevent thermal stress from producing hardening flaw；
6), for sheet member and long shaft parts, deformation during for reducing quenching, should try one's best lateral and directly to immersion hardening media, or be put on massive plate and immerse medium together, to reduce deformation；
7), for the workpiece of double quenching, if fluted or die cavity, then from water out after, place into oil groove cooling after answering evacuation hydrops；General oil groove oil outlet temperature is advisable with 150～200 DEG C；
8), quenching after workpiece must be tempered in time, typically do not exceed 2 hours and melt down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510049351.6A CN105986115A (en) | 2015-01-31 | 2015-01-31 | Control method for cooling process of heat treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510049351.6A CN105986115A (en) | 2015-01-31 | 2015-01-31 | Control method for cooling process of heat treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105986115A true CN105986115A (en) | 2016-10-05 |
Family
ID=57034476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510049351.6A Pending CN105986115A (en) | 2015-01-31 | 2015-01-31 | Control method for cooling process of heat treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105986115A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900628A (en) * | 2017-11-15 | 2018-04-13 | 江阴方圆环锻法兰有限公司 | Wind-powered electricity generation gear ring forging and its forging method |
| CN112553425A (en) * | 2021-01-30 | 2021-03-26 | 中聚信海洋工程装备有限公司 | Three-dimensional arrangement of heat treatment quenching equipment |
-
2015
- 2015-01-31 CN CN201510049351.6A patent/CN105986115A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900628A (en) * | 2017-11-15 | 2018-04-13 | 江阴方圆环锻法兰有限公司 | Wind-powered electricity generation gear ring forging and its forging method |
| CN112553425A (en) * | 2021-01-30 | 2021-03-26 | 中聚信海洋工程装备有限公司 | Three-dimensional arrangement of heat treatment quenching equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106929656B (en) | A kind of hardening and tempering method of 34CrNiMo6 large forgings | |
| US20200063252A1 (en) | Method of forming parts from sheet metal alloy | |
| CN101265514B (en) | Composite heat treatment method for 30CrMnSiA steel thin wall spinning cylinder-shape element | |
| CN101372726B (en) | Heat treatment method for thick big ductile cast iron mould | |
| JP2020056092A (en) | Quenching heat treatment device and in-line intelligent control method for cooling characteristics of quenching liquid | |
| CN109706297B (en) | Heat treatment method of H13 die steel | |
| CN105385980B (en) | A kind of Technology for Heating Processing of effectively control gear material Nitriding porosity layer | |
| CN105779716A (en) | Heat treatment process for bearing steel | |
| CN105567914A (en) | Novel process of heat treatment after forging | |
| CN105986115A (en) | Control method for cooling process of heat treatment | |
| CN105734214A (en) | Annealing process for H13 steel | |
| CN101906518B (en) | Post-forging heat treatment process for nickeliferous dilute alloy round steel | |
| CN102703652A (en) | Heat treatment process of hot-work-die steel for aluminum die-casting mould | |
| CN110977354A (en) | Production process of fuel tank hoop | |
| CN111100976A (en) | Heat treatment process for preventing cracking of steel for glass mold after forging | |
| CN105734207A (en) | Heat treatment cooling method | |
| CN112760460A (en) | Quenching and cooling method for large-scale self-aligning roller bearing ring | |
| CN112609124A (en) | 1Cr17Ni2 stainless steel screw and heat treatment process thereof | |
| CN205170927U (en) | Steel boiling water constant temperature quenching treatment device | |
| CN105755240A (en) | 5CrNiMo tempering process | |
| CN109136479A (en) | A kind of heat treatment process of lock housing mould bases | |
| CN104357631A (en) | Heat treatment method for eliminating 300M steel macrostructure defects | |
| CN106435148A (en) | Automatic shaft-type rotating quenching device | |
| CN106755789A (en) | The Technology for Heating Processing of rich chromium cast iron | |
| CN106270334A (en) | Square steel forging process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161005 |
|
| WD01 | Invention patent application deemed withdrawn after publication |