CN102886486A - Forging bearing steel cooling method for diameter forging machine - Google Patents
Forging bearing steel cooling method for diameter forging machine Download PDFInfo
- Publication number
- CN102886486A CN102886486A CN2012103864374A CN201210386437A CN102886486A CN 102886486 A CN102886486 A CN 102886486A CN 2012103864374 A CN2012103864374 A CN 2012103864374A CN 201210386437 A CN201210386437 A CN 201210386437A CN 102886486 A CN102886486 A CN 102886486A
- Authority
- CN
- China
- Prior art keywords
- forging
- bearing steel
- machine
- diameter
- sprayer
- 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.)
- Granted
Links
Abstract
The invention provides a forging bearing steel cooling method for a diameter forging machine, belonging to a metal machining technology. The forging bearing steel cooling method is characterized by comprising the following steps of: enabling a hammer head to be opened and immovable after forging material is forged, rotating the forging material and forwarding the forging material at a constant speed in cooperation with a diameter forging machine and an operating machine, operating a faceplate in an operation room by the diameter forging machine, wherein the flow of a sprayer is controlled at 0.8L/ min, and turning on a button of the hammer head sprayer, wherein the cooling water mist sprayed out of the sprayer is evenly sprayed onto the forging material within 30 seconds, so that the temperature of the forging material reaches to 600+/-20DEG C. According to the forging bearing steel cooling method, due to a hammer head cooling sprayer of the diameter forging machine, a novel cooling device does not need to be added in a normal production technology. Due to a simple method, the high-carbon chromium bearing steel GCr15 can be quickly cooled within a short time, and can not be cracked caused by over low temperature, and netty carbides can be effectively controlled, so that the produced bearing steel netty carbides with the outer diameters of phi 80-300mm can meet the GB18254-2002 standard.
Description
Technical field
The invention belongs to metal working process, be specifically related to the cooling means that a kind of footpath forging machine forges bearing steel.
Background technology
In field of alloy steel, the GCr15 bearing steel is one of steel grade that Interventions Requested are many, quality requirement is tight, production difficulty is large, with the rolling bearing of its making, in use require resistance to compression, wear-resistant, antifatigue, corrosion-resistant and long working life.
The Quality and yield direct relation of bearing speed and the process of national economy, national defense construction and the modernization of science technology.In the numerous Interventions Requested of GCr15 bearing steel, net carbide is one of index of most critical.
In the cooling procedure, because carbon solubility in austenite reduces, oversaturated carbon is separated out along austenitic crystal boundary in austenite with Carbide Morphology after the high-carbon-chromium bearing steel forge hot, and these net carbides are pro-eutectoid proeutectoid carbides.During quenching, can not eliminate fully its finished product afterwards.Be retained in the net carbide in the bearing steel, just increased the fragility of part.Control the separating out of net carbide well, being cooled fast to certain temperature pearlitic structrure that obtains annealing after the forge hot is the key of producing Bearing with high properties steel raw material.
The footpath forging machine that production line has 1800 tons is forged in the footpath, hot-metal sawing machine after the footpath forging machine has long transmission roller channel, if by normal production technology, cools off at roller-way after forging, following problem can occur: (1) need to be at the other equipment such as blower fan that adds of roller-way, and difficulty is larger on the spatial design; (2) needing to increase more hardware drops into; (3) inhomogeneous cooling is even.
Summary of the invention
The objective of the invention is to utilize the footpath to forge near the water spray system that is used for cooling off tup of machine tup, the bearing steel after the forge hot is cooled fast to certain temperature obtains the pearlitic structrure of annealing, rationally control separating out of net carbide.
The present invention utilizes footpath forging machine self spray cooling device, forge material forge complete after, positive opening tup spray equipment, and with the spray equipment flow-control at 0.8L/min.At this moment, tup is open-shaped motionless, forges material and at the uniform velocity advances by the rotation of the supporting manipulator of footpath forging machine, the cooling water smoke of spray equipment ejection is sprayed in 30 seconds equably forges on the material, thereby realize the process that material is forged in fast cooling.
The method of described positive opening is: when needs cooled off, the operative employee forged the machine operation panel at operating room by the footpath, opened tup spray equipment button, provided the sprinkling signal, spray equipment ejection cooling water.
The present invention is by using the footpath to forge machine tup cooling sprayer, avoided conventional production process to add new cooling device, use this short-cut method, make at short notice fast cooling of high-carbon-chromium bearing steel GCr15, and be unlikely to temperature and cross the low cracking that produces, finally effectively controlled net carbide, the ￠ 80-300mm bearing steel net carbide of producing all meets the GB18254-2002 standard-required.
The specific embodiment
To forge at footpath forging machine after the blank heating, in this process, according to the tup situation of being heated, spray equipment moves automatically, after forging end, by the manipulator clamping bar of footpath forging machine one side, carry to opposite side, move back and forth, tup opens motionless in this process, the operative employee forges the machine operation panel at operating room by the footpath, opens tup spray equipment button, and the cooling water of spray equipment ejection will be forged material and be cooled fast to 600 ± 20 ℃ in 30 seconds.
Claims (1)
1. cooling means that footpath forging machine forges bearing steel, it is characterized in that after the forging of forging material is complete, tup is open-shaped motionless, forge material by the supporting manipulator rotation of footpath forging machine and also at the uniform velocity advance, at this moment, operating room is forged the machine operation panel by the footpath, with the spray equipment flow-control at 0.8L/min, open tup spray equipment button, the cooling water smoke that spray equipment is sprayed was sprayed in 30 seconds on the forging material equably, made forging material temperature reach 600 ± 20 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210386437.4A CN102886486B (en) | 2012-10-13 | 2012-10-13 | Forging bearing steel cooling method for diameter forging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210386437.4A CN102886486B (en) | 2012-10-13 | 2012-10-13 | Forging bearing steel cooling method for diameter forging machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102886486A true CN102886486A (en) | 2013-01-23 |
| CN102886486B CN102886486B (en) | 2014-12-17 |
Family
ID=47530277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210386437.4A Active CN102886486B (en) | 2012-10-13 | 2012-10-13 | Forging bearing steel cooling method for diameter forging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102886486B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62292234A (en) * | 1986-06-12 | 1987-12-18 | Mitsubishi Heavy Ind Ltd | Automatic forging device |
| JPH09276971A (en) * | 1996-04-18 | 1997-10-28 | Daido Steel Co Ltd | Die set and method for cooling forged product |
| CN101709365A (en) * | 2009-11-13 | 2010-05-19 | 中原特钢股份有限公司 | Heating processing process in production of high -carbon chromium bearing steel |
| CN101716648A (en) * | 2009-12-04 | 2010-06-02 | 大连交通大学 | Bearing part post-forging intelligent cooling control technical process and device |
-
2012
- 2012-10-13 CN CN201210386437.4A patent/CN102886486B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62292234A (en) * | 1986-06-12 | 1987-12-18 | Mitsubishi Heavy Ind Ltd | Automatic forging device |
| JPH09276971A (en) * | 1996-04-18 | 1997-10-28 | Daido Steel Co Ltd | Die set and method for cooling forged product |
| CN101709365A (en) * | 2009-11-13 | 2010-05-19 | 中原特钢股份有限公司 | Heating processing process in production of high -carbon chromium bearing steel |
| CN101716648A (en) * | 2009-12-04 | 2010-06-02 | 大连交通大学 | Bearing part post-forging intelligent cooling control technical process and device |
Non-Patent Citations (3)
| Title |
|---|
| 刘剑恒: "轴承钢GCr15棒材产品低温精轧的研究", 《钢铁》, vol. 40, no. 11, 30 November 2005 (2005-11-30) * |
| 郑存吉: "《第六届全国锻压年会论文》", 8 January 2003, article "提高ＧＦＭ精锻机锤头使用寿命的研究" * |
| 韩光武: "提高精锻机锻造大规格高碳铬轴承钢的合格率", 《大型铸锻件》, no. 3, 30 August 2006 (2006-08-30) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102886486B (en) | 2014-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101549449B (en) | Processing technology for high-strength large hexagon head bolt used for steel structure | |
| CN101549448B (en) | Processing technology for high-strength bolt used for steel net frame bolt ball node | |
| CN101934466A (en) | Technology for processing high strength large hexagon-headed bolt used for steel structure | |
| CN101709365A (en) | Heating processing process in production of high -carbon chromium bearing steel | |
| JP2007044764A (en) | Hot forging equipment | |
| CN102626723A (en) | Method for manufacturing steel pipe for bearing ring | |
| CN103243210B (en) | Two-stage quenching heat treatment process method of crusher combined hammer head and special device thereof | |
| CN103352107B (en) | Temperature control quenching device and the methods such as a kind of forging abrading-ball | |
| CN101934467A (en) | Machining process of high strength bolt for steel space frame bolted spherical joint | |
| CN101760603A (en) | Manufacture method of composite milling roller with good roller surface rigidity uniformity | |
| CN103602798A (en) | Method for heat treatment on high-hardness semi-steel roller | |
| CN104191188A (en) | Cutting tool manufacturing method capable of conveniently reducing austenite residue | |
| CN109182676B (en) | Preparation method of low-temperature impact resistant carbon manganese steel S355J2G3 forged circle | |
| CN103350116A (en) | Rolling process beneficial to spheroidizing annealing of Cr and Mo steel | |
| CN103805764A (en) | Hot rolling process for thinning high manganese austenitic steel grains | |
| CN107287397B (en) | A kind of hot continuous-milling steel plate cooling device for thermal treatment and control method | |
| CN102912091A (en) | Method and cooling system for improving comprehensive mechanical property of normalized steel plate | |
| CN107058704A (en) | A kind of process of elimination 4Cr13 stainless steel rings rolled piece annealed state net carbon | |
| CN105714027A (en) | Heat treatment process for hardening and tempering of 45 steel | |
| CN102899469B (en) | Heat-treatment method of high-chromium wear-resistant white cast iron Cr28 | |
| CN102886486B (en) | Forging bearing steel cooling method for diameter forging machine | |
| CN102489646A (en) | Method for processing steel ball | |
| CN104232858A (en) | Spheroidizing annealing technology of high-tenacity fastener wire rod | |
| CN110592341A (en) | Annealing softening heat treatment method for rock drilling tool steel | |
| CN104017952B (en) | The economizing type of a kind of low-alloy high-strength steel part exempts to be tempered strength-toughening process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |