CN107674947B - A kind of normalizing liquid of high-carbon alloy steel, preparation method and high-carbon alloy steel normalizing cooling technique - Google Patents
A kind of normalizing liquid of high-carbon alloy steel, preparation method and high-carbon alloy steel normalizing cooling technique Download PDFInfo
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- CN107674947B CN107674947B CN201710645464.1A CN201710645464A CN107674947B CN 107674947 B CN107674947 B CN 107674947B CN 201710645464 A CN201710645464 A CN 201710645464A CN 107674947 B CN107674947 B CN 107674947B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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Abstract
The present invention relates to steel-casting technical field of heat treatment, normalizing liquid, preparation method and the high-carbon alloy steel normalizing cooling technique of especially a kind of high-carbon alloy steel, the normalizing liquid of every 100 parts by weight includes following components in parts by weight: 50~60 parts of base oil, 1~3 part of polyacrylic acid, and 5~10 parts of appropriate youngster's fatty acid oil, 5~10 parts of hydramine, 5~8 parts of fatty alcohol polyoxyethylene ether, 3~5 parts of petroleum sodium sulfonate, 1~2 part of fungicide, 0.1~0.5 part of defoaming agent, surplus is water.The normalizing liquid of high-carbon alloy steel of the invention mainly improves the intensity of high-carbon alloy steel, solves big specification sectional dimension in the exceeded problem of 60mm or more net carbide.
Description
Technical field
The present invention relates to steel-casting technical field of heat treatment, the normalizing liquid of especially a kind of high-carbon alloy steel, its preparation side
Method and high-carbon alloy steel normalizing cooling technique.
Background technique
The country is currently without a kind of special high-carbon alloy steel normalizing liquid.The normalizing cooling medium one of present high-carbon alloy steel
As it is cooling using water cooling or quenching oil, water cooling cooling rate is too fast, and product workpiece is easy cracking and scraps, increase cost virtually,
And it is unfavorable for controlling；Quenching oil is cooling, and cooling rate is too slow, cannot control net carbide well, and oil smoke is big, pollutes environment,
It is also easy to catch fire, is unfavorable for keeping the safety in production.Especially in bearing steel ball GCr15 material in big specification sectional dimension in 60mm or more
Being easy to for net carbide is exceeded.High-carbon-chromium bearing steel is hypereutectoid steel, can be along austenite grain boundary during roller repairing
Proeutectoid cementite is precipitated, this i.e. carbide network.Practice have shown that the presence of carbide inhomogeneities seriously affects making for steel
Use performance.Carbide network will increase the brittleness of steel, damage the service life of bearing parts, data introduction, carbide network
The every elevated by one step of rank, bearing life will reduce one third and close by GB/T18254-2016 standard detection carbide network
Lattice rank is 1-2.5 grades.It is common problem that current domestic bearing steel production firm encounters that carbide network is exceeded, for this side
The research in face is more, and major measure is to control the precipitation of GCr15 bearing steel proeutectoid carbide in continuous cooling process, uses
Carbide network is eliminated or mitigated to normalized treatment after forging.Using using water normalizing cooling usually in production, product is easy to crack；
Cooling with quenching oil normalizing, being easy to for net carbide is exceeded；So it is cold between water and oil to be badly in need of a kind of cooling velocity
But medium, and comparatively safe and environmentally friendly cooling medium；And other water-soluble cooling mediums in the market, it is that a kind of cooling performance is special
Not stable at the uniform velocity cooling medium belongs to polyvinylpyrrolidone (PVP) class medium and also contains carboxylic in addition to PVP main component
Sodium carboxymethylcellulose pyce (CMC) and Sodium Polyacrylate (ACR).Its excellent cooling performance is mainly existed by PVP and two kinds of components of CMC
Collective effect within the scope of certain proportion and obtain.But since the glycosidic bond of CMC is easily broken, especially hot stage (400-
850 DEG C) its decomposition can be accelerated, so that molecular weight reduces, the viscosity and concentration of at the uniform velocity cooling medium are reduced, and then change even
The cooling characteristics of fast cooling medium, thus using this at the uniform velocity cooling medium is produced when, frequently to carry out concentration monitor
Come make up its composition transfer the problem of.It at the uniform velocity cooling medium and its is controlled after forging disclosed in Chinese patent CN103789520A
Application in cooling procedure can be effectively controlled " secondary band-like " using the PVP at the uniform velocity cooling medium of 20%-30% concentration, obtain
Obtain tiny, uniform tissue.But the use concentration of the at the uniform velocity cooling medium is higher, and 20% or more concentration can just obtain at the uniform velocity
Cooling characteristics, on the one hand however higher concentration increases the input cost of early period；On the other hand higher viscosity, also increases
The band consumption of at the uniform velocity cooling medium is added.
Summary of the invention
In order to overcome the shortcomings of existing normalizing liquid, the present invention provides a kind of normalizing liquid of high-carbon alloy steel, its preparation
Method and high-carbon alloy steel normalizing cooling technique.
The technical solution adopted by the present invention to solve the technical problems is: a kind of normalizing liquid of high-carbon alloy steel, every 100 weight
The normalizing liquid for measuring part includes following components in parts by weight: 50~60 parts of base oil, 1~3 part of polyacrylic acid, and appropriate youngster's fatty acid oil 5
~10 parts, 5~10 parts of hydramine, 5~8 parts of fatty alcohol polyoxyethylene ether, 3~5 parts of petroleum sodium sulfonate, 1~2 part of fungicide, defoaming
0.1~0.5 part of agent, surplus is water.
According to another embodiment of the invention, further comprise that the method includes the steps of:
Step 1: will be in 50~60 parts of addition reaction kettles of base oil；
Step 2: heating the base oil in reaction kettle, is heated to 40~60 DEG C；
Step 3: adding 1~3 part of polyacrylic acid 5~10 parts of appropriate youngster's fatty acid oil, and 5~10 parts of hydramine, fatty alcohol polyoxy
5~8 parts of vinethene, 3~5 parts of petroleum sodium sulfonate, 1~2 part of fungicide, 0.1~0.5 part of defoaming agent, surplus is water, keeps temperature
At 40~60 DEG C.
Step 4: material in reactor agitated 1~2 hour, using the normalizing liquid that high-carbon alloy steel is obtained by filtration.
According to another embodiment of the invention, after further comprising high-carbon alloy steel hot forging, it is directly immersed in normalizing
It is cooling in liquid.
According to another embodiment of the invention, the aqueous solution mass concentration for further comprising normalizing liquid is 10-15%, cold
Speed control is in 65-75 DEG C/s.
According to another embodiment of the invention, further comprise normalizing liquid cooling speed ratio water cooling rate it is slow, than quenching oil
Cooling rate is fast, to reach the requirement of control carbide.
The invention has the advantages that the normalizing liquid of high-carbon alloy steel of the invention mainly improves the strong of high-carbon alloy steel
Degree, solves big specification sectional dimension in the exceeded problem of 60mm or more net carbide.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
It is 10% and the cooling curve comparison diagram of water and quenching oil that Fig. 1, which is using the aqueous solution mass concentration of normalizing liquid,；
It is 12% and the cooling curve comparison diagram of water and quenching oil that Fig. 2, which is using the aqueous solution mass concentration of normalizing liquid,；
It is 15% and the cooling curve comparison diagram of water and quenching oil that Fig. 3, which is using the aqueous solution mass concentration of normalizing liquid,；
Fig. 4 is embodiment one by GB/T18254-2016 standard detection carbide network levels effect figure；
Fig. 5 is embodiment two by GB/T18254-2016 standard detection carbide network levels effect figure；
Fig. 6 is embodiment three by GB/T18254-2016 standard detection carbide network levels effect figure；
Specific embodiment
Embodiment one:
Bearing steel ball GCr15 material is cooling in normalizing of the sectional dimension in 80mm, the stoste of normalizing liquid by formula as below into
Row is prepared: 50 parts of base oil, 1 part of polyacrylic acid, and 5 parts of appropriate youngster's fatty acid oil, 5 parts of hydramine, 5 parts of fatty alcohol polyoxyethylene ether, stone
3 parts of oily sodium sulfonate, 1 part of fungicide, 0.1 part of defoaming agent, surplus is water.Using normalizing liquid aqueous solution mass concentration be 10% with
The comparison of the cooling curve of water and quenching oil.Attached drawing such as Fig. 1:
300 DEG C of cooling velocities are respectively: 10% 74 DEG C/s of normalizing liquid, 86 DEG C/s of water, 5 DEG C/s of quenching oil.
Use rear effect such as Fig. 4: bearing steel ball GCr15 material is kept the temperature in sectional dimension at 950 DEG C of normalizing temperature of 80mm
60min quenches after normalizing liquid, is 2.5 grades by GB/T18254-2016 standard detection carbide network rank.
Embodiment two:
Bearing steel ball GCr15 material is cooling in normalizing of the sectional dimension in 80mm, the stoste of normalizing liquid by formula as below into
Row is prepared: 55 parts of base oil, 1.5 parts of polyacrylic acid, and 7 parts of appropriate youngster's fatty acid oil, 8 parts of hydramine, fatty alcohol polyoxyethylene ether 6.5
Part, 4 parts of petroleum sodium sulfonate, 1.5 parts of fungicide, 0.2 part of defoaming agent, surplus is water.Use the aqueous solution mass concentration of normalizing liquid
It is compared for 10% with the cooling curve of water and quenching oil.Attached drawing such as Fig. 2:
300 DEG C of cooling velocities are respectively: 12% 72 DEG C/s of normalizing liquid, 86 DEG C/s of water, 5 DEG C/s of quenching oil.
Use rear effect such as Fig. 5: bearing steel ball GCr15 material is kept the temperature in sectional dimension at 930 DEG C of normalizing temperature of 70mm
80min quenches after normalizing liquid, is 2 grades by GB/T18254-2016 standard detection carbide network rank.
Embodiment three:
Bearing steel ball GCr15 material is cooling in normalizing of the sectional dimension in 80mm, the stoste of normalizing liquid by formula as below into
Row is prepared: 60 parts of base oil, 3 parts of polyacrylic acid, and 10 parts of appropriate youngster's fatty acid oil, 10 parts of hydramine, 8 parts of fatty alcohol polyoxyethylene ether,
5 parts of petroleum sodium sulfonate, 2 parts of fungicide, 0.5 part of defoaming agent, surplus is water.Aqueous solution mass concentration using normalizing liquid is 15%
It is compared with the cooling curve of water and quenching oil.Attached drawing following 3:
300 DEG C of cooling velocities are respectively: 15% 68 DEG C/s of normalizing liquid, 84 DEG C/s of water, 5 DEG C/s of quenching oil.
Use rear effect such as Fig. 6: bearing steel ball GCr15 material is kept the temperature in sectional dimension at 950 DEG C of normalizing temperature of 80mm
60min quenches after normalizing liquid, is 2 grades by GB/T18254-2016 standard detection carbide network rank.
Described above to be merely exemplary for the purpose of the present invention, and not restrictive, those of ordinary skill in the art understand,
In the case where not departing from spirit and scope as defined in the appended claims, many modifications, variation or equivalent can be made, but all
It will fall within the scope of protection of the present invention.
Claims (5)
1. a kind of normalizing liquid of high-carbon alloy steel, characterized in that the normalizing liquid of every 100 parts by weight includes the group of following weight parts
Point: 50~60 parts of base oil, 1~3 part of polyacrylic acid, 5~10 parts of appropriate youngster's fatty acid oil, 5~10 parts of hydramine, fatty alcohol polyoxy second
5~8 parts of alkene ether, 3~5 parts of petroleum sodium sulfonate, 1~2 part of fungicide, 0.1~0.5 part of defoaming agent, surplus is water.
2. a kind of method for the normalizing liquid for preparing high-carbon alloy steel described in claim 1, characterized in that this method includes following
Step:
Step 1: will be in 50~60 parts of addition reaction kettles of base oil；
Step 2: heating the base oil in reaction kettle, is heated to 40~60 DEG C；
Step 3: adding 1~3 part of polyacrylic acid 5~10 parts of appropriate youngster's fatty acid oil, and 5~10 parts of hydramine, aliphatic alcohol polyethenoxy
5~8 parts of ether, 3~5 parts of petroleum sodium sulfonate, 1~2 part of fungicide, 0.1~0.5 part of defoaming agent, surplus is water, maintains the temperature at 40
~60 DEG C；
Step 4: material in reactor agitated 1~2 hour, using the normalizing liquid that high-carbon alloy steel is obtained by filtration.
3. a kind of cooling technique of the normalizing liquid of high-carbon alloy steel according to claim 1, characterized in that high-carbon alloy steel
After hot forging, it is directly immersed in normalizing liquid cooling.
4. a kind of cooling technique of the normalizing liquid of high-carbon alloy steel according to claim 1, characterized in that the normalizing liquid
Aqueous solution mass concentration be 10-15%, cooling rate control in 65-75 DEG C/s.
5. a kind of cooling technique of the normalizing liquid of high-carbon alloy steel according to claim 1, characterized in that the normalizing liquid
Cooling rate is slower than the cooling rate of water, and the cooling rate than quenching oil is fast, to reach the requirement of control carbide.
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| CN201710645464.1A CN107674947B (en) | 2017-08-01 | 2017-08-01 | A kind of normalizing liquid of high-carbon alloy steel, preparation method and high-carbon alloy steel normalizing cooling technique |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1827823A (en) * | 2006-04-13 | 2006-09-06 | 李宁 | High-carbon alloy steel wearable steel ball and production method thereof |
| CN101947630A (en) * | 2010-09-17 | 2011-01-19 | 洛阳轴研科技股份有限公司 | Controlled-forging controlled-cooling processing technology of bearing ring prepared by GCr15 |
| CN102839038A (en) * | 2012-09-13 | 2012-12-26 | 济南库伦特科技有限公司 | Additive composition for producing emulsified oil, preparation method of additive composition and application of additive composition |
| CN106190479A (en) * | 2016-07-13 | 2016-12-07 | 天长市润达金属防锈助剂有限公司 | The magnesium alloy cutting fluid that a kind of low bubble cooling performance is good |
-
2017
- 2017-08-01 CN CN201710645464.1A patent/CN107674947B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1827823A (en) * | 2006-04-13 | 2006-09-06 | 李宁 | High-carbon alloy steel wearable steel ball and production method thereof |
| CN101947630A (en) * | 2010-09-17 | 2011-01-19 | 洛阳轴研科技股份有限公司 | Controlled-forging controlled-cooling processing technology of bearing ring prepared by GCr15 |
| CN102839038A (en) * | 2012-09-13 | 2012-12-26 | 济南库伦特科技有限公司 | Additive composition for producing emulsified oil, preparation method of additive composition and application of additive composition |
| CN106190479A (en) * | 2016-07-13 | 2016-12-07 | 天长市润达金属防锈助剂有限公司 | The magnesium alloy cutting fluid that a kind of low bubble cooling performance is good |
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Address after: 213100 No. 16 Huafeng Road, Dingyan Street, Wujin District, Changzhou City, Jiangsu Province Patentee after: Changzhou Longbang Lubrication Technology Co.,Ltd. Address before: 213000 No. 16 Huafeng Road, Ding Yan Street, Wujin District, Jiangsu, Changzhou Patentee before: CHANGZHOU LONGPONT LUBRICANTS Co.,Ltd. |
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Effective date of registration: 20230712 Address after: 231300 Fengdun Village School, Shucheng County Economic and Technological Development Zone, Lu'an City, Anhui Province Patentee after: Geng Wei Address before: 213100 No.16, Huafeng Road, Dingyan street, Wujin District, Changzhou City, Jiangsu Province Patentee before: Changzhou Longbang Lubrication Technology Co.,Ltd. |