CN108515154A - A kind of integral manufacturing technique of abrasion-proof steel ball - Google Patents
A kind of integral manufacturing technique of abrasion-proof steel ball Download PDFInfo
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- CN108515154A CN108515154A CN201810310244.8A CN201810310244A CN108515154A CN 108515154 A CN108515154 A CN 108515154A CN 201810310244 A CN201810310244 A CN 201810310244A CN 108515154 A CN108515154 A CN 108515154A
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- steel ball
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- ball
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
-
- 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
- C21D1/84—Controlled slow cooling
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
The application provides a kind of integral manufacturing technique of abrasion-proof steel ball, and the continuous casting and rolling is that continuously casting and soft reduction technique are incorporated into one, implements liquid core rolling.Continuous casting production is with sensing heating to ensure that liquid steel temperature stablizes the stabilization with steel ball internal soundness.The application realizes that abrasion-proof steel ball is produced from composition design to smelting, continuously casting and rolling with liquid core, steel billet are directly heat-fed integration of the rolling steel ball to steel ball heat treatment process flow and equipment by integrated design.Since strand uses sensing heating and soaking, the investment of the Large-scale Heater for heating strand is omitted；Integrated casting and rolling uses strand rolling with liquid core, and the internal soundness for effectively promoting steel ball is horizontal, and can break through constraint of the wear-resistant ball steel to rolling ratio, and rolling pass is reduced；The wear-resisting rod iron of hot rolling with roll that ball is integrated, reduce bar and heat required energy consumption again.The application has many advantages, such as fast pace, high efficiency, high quality and high benefit.
Description
Technical field
The present invention relates to abrasion-proof steel ball or rod iron production technology fields, and in particular to arrives a kind of integration of abrasion-proof steel ball
Production technology.
Background technology
The production of abrasion-proof steel ball or rod iron at present smelts using split type technological process and continuous casting integrally produces
Go out abrasion-proof steel ball continuous casting billet, hot sending carries out heating rolling into wear-resisting rod iron to continuous casting billet to heater for rolling steel by slow cooling or directly
Material carries out slow cooling, and the abrasion-resistant stee stocking by slow cooling enters ball rolling machine using sensing heating and carries out ball rolling, and according to reality
Border situation is individually organized using online or heat-treated offline from strand production, bar production and abrasion-proof steel ball production.It adopts
It is primarily present three problems with the flow：
One, to ensure the wear-resisting property of steel ball, abrasion-proof steel ball carbon content is generally 0.6% or more, but high-carbon steel is in casting process
It is susceptible to shrinkage cavity, segregation etc., to solve segregation and the problems such as shrinkage cavity, generally using electromagnetic agitation and soft reduction technique, but effect
Fruit is undesirable always.
Two, the production of abrasion-proof steel ball bar is to roll heating steel billet to set point of temperature by using heating furnace,
There are two types of modes for strand shove charge：First, cold charge, continuous casting billet landing carries out warehousing management, and strand slow cooling is more than 24 hours and temperature is low
It is transported to Bars Workshop again after 200 DEG C, is packed into heating stove heat, rolling bar is carried out after being heated to hot processing temperature；Second is that
Hot charging, continuous casting billet do not land, and are delivered to Bars Workshop heating furnace shove charge through rollgang, 500-600 DEG C of charging temperature is heated to
Rolling bar is carried out after hot processing temperature.
Strand hot charging is compared with cold charge to be had the following advantages：
1, it is few that strand storage, slow cooling and transhipment link, intermediate link is omitted in hot charging；
2, hot charging strand charging temperature is high, and heating strand speed is fast, heating time is short, low energy consumption；
3, internal temperature is higher than surface temperature when strand enters stove, and heated rear strand internal and external temperature is uniform, and strand is made especially to cast
Base center has preferable plasticity, is conducive to that strand is loose, soldering of shrinkage cavity macro defect, improves strand to a certain extent
Low multiple quality.
In view of above-mentioned advantage, wear-resistant ball steel strand mainstream charging mode uses hot charging.
But hot charging is as cold charge, is all the ability shove charge after strand solidifies completely, rolling bar is completely solidifying in strand
It is carried out under solid fraction state, the resistance of deformation of material is big, cannot achieve aximal deformation value rolling, and bar low multiple quality cannot obtain at all
Improve.Wear-resistant ball steel generally is high-carbon steel, and strand is rolled into after bar or even there is also shrinkage cavity defects, cannot be satisfied downstream and rolls
The needs of wear-resistant ball processed.
Three, current wear-resistant ball steel bar production is produced with ball is rolled respectively in strange land progress, usually at a distance of hundreds of kilometer, bar
Generally also there are two types of bridging modes with ball is rolled：First, rolling bottom-type heating furnace heating；Second is that bar sensing heating at ambient temperature.
Two kinds of mode of heatings have the shortcomings that it is apparent, rolling bottom-type heating furnace heating temperature it is uneven, through the uneven change of subsequent cross wedge rolling
Shape rolls ball and is easy cracking；Bar sensing heating at ambient temperature, heating speed is fast, wear-resistant ball steel category high-carbon steel, and alloy contains
Amount is higher, and the heat conductivility of steel is poor, and heating is easy to crack.
In view of quality problems existing for wear-resistant ball steel strand, the shortcomings that strand cold charge and hot charging and rolling bar is wear-resisting
Ball production process, the distinct disadvantage of technique, simultaneously because long flow path, constantly cooling and heating for strand wastes a large amount of energy
Source, the innovation abrasion-proof steel ball technological process of production have become the road of the certainty of wear-resistant ball technical progress of industry.
Invention content
The technical issues of solution：What the application mainly solved is the of poor quality of steel ball in the prior art, energy consumption is high, flows
The technical problem that journey is long, steel bar quality is low and workshop, equipment investment are big；It is solved using Continuous Casting Soft Reduction and rolling with liquid core
The quality problems of steel ball solve the problems, such as that energy consumption is high by strand sensing heating and hot sending rolling, pass through the one of production line
Bodyization design solves the problems, such as that long flow path, consumption are high, by using the flow, it is possible to reduce workshop, equipment investment reduce energy
Consumption, meanwhile, the technical issues of being conducive to improve the quality of wear-resistant ball steel bar and wear-resistant ball.
Technical solution：
A kind of integral manufacturing technique of abrasion-proof steel ball, step are：
The first step：Refining furnace is put into after raw material is slightly refined and smelts to obtain strand, strand is put into continuous casting and rolling in conticaster, in continuous casting
Slighter compress strand rolling with liquid core；
Second step, strand sensing heating：Sensed heating device is directly entered after carrying out soaking in the state that strand is after continuous casting
Ball rolling machine rolls abrasion-proof steel ball；
Third walks, abrasion-proof steel ball rolling and heat treatment integration：Strand band wick-containing enters ball rolling machine rolling, material resistance of deformation drop
It is low, realize that aximal deformation value rolling, rolling pass reduce, reduce the configuration of tandem mill sortie, save investment, and due to becoming greatly
Shape amount rolls, and the plasticity of steel is more preferable, and deformation is deep and thorough, promotes that strand macro defect is loose, soldering of shrinkage cavity, improves product
Quality, by the production integrated with burial pit heat treatment of conticaster fluxion, strand does not land stacking storage, furnaceman is omitted
Sequence is packed to obtain the final product.
As a preferred technical solution of the present invention：It is induction furnace alloy, electric arc furnaces that the first step, which slightly refines mode,
Or converter smelting.
As a preferred technical solution of the present invention：The first step refining furnace furnace gas temperature is 1100-1350 DEG C.
As a preferred technical solution of the present invention：The first step raw material uses high-carbon steel.
As a preferred technical solution of the present invention：Continuous casting production induction is equipped in the first step in conticaster to add
Thermal ensures continuous casting direct motion and product quality to prevent liquid steel temperature from reducing.
As a preferred technical solution of the present invention：It is described into being furnished with induction heating apparatus before ball rolling machine, before rolling ball
The sensing heating initial temperature of bar reaches 850 DEG C, reduces energy consumption.
Advantageous effect：
1, the application uses integrated casting and rolling.Sensing heating under the strand condition of high temperature, strand do not land, avoid strand storage,
Slow cooling, transhipment link, and heating furnace is omitted；Strand rolling with liquid core, aximal deformation value deformation, reduces rolling pass, milling train
Sortie is few, reduces equipment and workshop investment；Direct Rolling wear-resistant ball after rolling bar avoids bar storage transhipment link.Cause
This, the application has the characteristics that few workshop, equipment investment, fast pace, high efficiency and high benefit.Investment is reduced than traditional process
20% or more.
2, the application improves the product quality of wear-resistant ball bar and final products abrasion-proof steel ball.The application is in
Between packet sensing device thermal-stable liquid steel temperature and pulling speed of continuous casting, improve the stabilization of slab quality, reduce segregation, continuous casting billet is gently pressed
The lower segregation and shrinkage cavity for improving strand, continuous casting billet are directly entered milling train, rolling with liquid core, steel after sensing heating at high operating temperatures
Resistance of deformation it is small, it can be achieved that aximal deformation value deform, loose, the effective soldering of shrinkage cavity defect in strand low power can be made；Bar
Sensing heating is carried out after rolling at high operating temperatures, can effectively avoid the crack defect caused by heating speed is fast.By upper
The integrated of technology is stated, than inside and the surface quality that traditional handicraft substantially improves wear-resistant ball, improve wear-resistant ball uses the longevity
Life.
3, by with the rolling of wick-containing fast pace, strand induction hot sending rolling, rolling bar and the integrated of ball rolling machine and
The technologies such as online Residual Heat Treatment reduce by 25% or more energy consumption than traditional process ton ball.
Specific implementation mode：
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, with reference to specific
Embodiment, the present invention is further explained.
Embodiment 1：
A kind of integral manufacturing technique of abrasion-proof steel ball, includes the following steps：
The first step：High-carbon steel is put into refining furnace after induction furnace alloy, electric arc furnaces or converter smelting and smelts to obtain strand, is refined
Stove furnace gas temperature is 1100-1280 DEG C, and strand is put into continuous casting and rolling in conticaster, is rolled in Continuous Casting Soft Reduction strand band wick-containing
It makes, continuous casting production induction heating apparatus is equipped in conticaster, to prevent liquid steel temperature from reducing, ensure continuous casting direct motion and product matter
Amount.
Second step, strand sensing heating：In the state that strand is after continuous casting after sensed heating device progress soaking directly
Abrasion-proof steel ball is rolled into ball rolling machine, the sensing heating of bar is initial before into being furnished with induction heating apparatus before ball rolling machine, rolling ball
Temperature reaches 850 DEG C, reduces energy consumption.
Third walks, abrasion-proof steel ball rolling and heat treatment integration：Strand band wick-containing enters ball rolling machine rolling, and material deformation is anti-
Power reduces, and realizes that aximal deformation value rolling, rolling pass are reduced, reduces the configuration of tandem mill sortie, save investment, and due to
Aximal deformation value rolls, and the plasticity of steel is more preferable, and deformation is deep and thorough, promotes that strand macro defect is loose, soldering of shrinkage cavity, improves
Product quality, by the production integrated with burial pit heat treatment of conticaster fluxion, strand does not land stacking storage, heating is omitted
Furnaceman's sequence, is packed to obtain the final product.
The application uses integrated casting and rolling.Sensing heating under the strand condition of high temperature, strand do not land, and avoid strand storehouse
Storage, slow cooling, transhipment link, and heating furnace is omitted；Strand rolling with liquid core, aximal deformation value deformation, reduces rolling pass, rolls
Rack time is few, reduces equipment and workshop investment；Direct Rolling wear-resistant ball after rolling bar avoids bar storage transhipment link.
Therefore, the application has the characteristics that few workshop, equipment investment, fast pace, high efficiency and high benefit.It reduces and throws than traditional process
20% or more money.
The application improves the product quality of wear-resistant ball bar and final products abrasion-proof steel ball.The application is by using centre
Packet sensing device thermal-stable liquid steel temperature and pulling speed of continuous casting improve the stabilization of slab quality, reduce segregation, continuous casting billet slighter compress
Improve the segregation and shrinkage cavity of strand, continuous casting billet is directly entered milling train after sensing heating at high operating temperatures, rolling with liquid core, steel
Resistance of deformation is small, it can be achieved that aximal deformation value deformation, can make loose, the effective soldering of shrinkage cavity defect in strand low power；Rolled bar
It carries out sensing heating at high operating temperatures afterwards, can effectively avoid the crack defect caused by heating speed is fast.By above-mentioned
Integrating for technology, than inside and the surface quality that traditional handicraft substantially improves wear-resistant ball, improves the service life of wear-resistant ball.
By with wick-containing fast pace rolling, strand induction hot sending rolling, rolling bar with the integrated of ball rolling machine and
The technologies such as line Residual Heat Treatment reduce by 25% or more energy consumption than traditional process ton ball.
Embodiment 2：
A kind of integral manufacturing technique of abrasion-proof steel ball, includes the following steps：
The first step：High-carbon steel is put into refining furnace after induction furnace alloy, electric arc furnaces or converter smelting and smelts to obtain strand, is refined
Stove furnace gas temperature is 1250-1350 DEG C, and strand is put into continuous casting and rolling in conticaster, is rolled in Continuous Casting Soft Reduction strand band wick-containing
It makes, continuous casting production induction heating apparatus is equipped in conticaster, to prevent liquid steel temperature from reducing, ensure continuous casting direct motion and product matter
Amount.
Second step, strand sensing heating：In the state that strand is after continuous casting after sensed heating device progress soaking directly
Abrasion-proof steel ball is rolled into ball rolling machine, the sensing heating of bar is initial before into being furnished with induction heating apparatus before ball rolling machine, rolling ball
Temperature reaches 850 DEG C, reduces energy consumption.
Third walks, abrasion-proof steel ball rolling and heat treatment integration：Strand band wick-containing enters ball rolling machine rolling, and material deformation is anti-
Power reduces, and realizes that aximal deformation value rolling, rolling pass are reduced, reduces the configuration of tandem mill sortie, save investment, and due to
Aximal deformation value rolls, and the plasticity of steel is more preferable, and deformation is deep and thorough, promotes that strand macro defect is loose, soldering of shrinkage cavity, improves
Product quality, by the production integrated with burial pit heat treatment of conticaster fluxion, strand does not land stacking storage, heating is omitted
Furnaceman's sequence, is packed to obtain the final product.
The application uses integrated casting and rolling.Sensing heating under the strand condition of high temperature, strand do not land, and avoid strand storehouse
Storage, slow cooling, transhipment link, and heating furnace is omitted；Strand rolling with liquid core, aximal deformation value deformation, reduces rolling pass, rolls
Rack time is few, reduces equipment and workshop investment；Direct Rolling wear-resistant ball after rolling bar avoids bar storage transhipment link.
Therefore, the application has the characteristics that few workshop, equipment investment, fast pace, high efficiency and high benefit.It reduces and throws than traditional process
20% or more money.
The application improves the product quality of wear-resistant ball bar and final products abrasion-proof steel ball.The application is by using centre
Packet sensing device thermal-stable liquid steel temperature and pulling speed of continuous casting improve the stabilization of slab quality, reduce segregation, continuous casting billet slighter compress
Improve the segregation and shrinkage cavity of strand, continuous casting billet is directly entered milling train after sensing heating at high operating temperatures, rolling with liquid core, steel
Resistance of deformation is small, it can be achieved that aximal deformation value deformation, can make loose, the effective soldering of shrinkage cavity defect in strand low power；Rolled bar
It carries out sensing heating at high operating temperatures afterwards, can effectively avoid the crack defect caused by heating speed is fast.By above-mentioned
Integrating for technology, than inside and the surface quality that traditional handicraft substantially improves wear-resistant ball, improves the service life of wear-resistant ball.
By with wick-containing fast pace rolling, strand induction hot sending rolling, rolling bar with the integrated of ball rolling machine and
The technologies such as line Residual Heat Treatment reduce by 25% or more energy consumption than traditional process ton ball.
Embodiment 3：
A kind of integral manufacturing technique of abrasion-proof steel ball, includes the following steps：
The first step：High-carbon steel is put into refining furnace after induction furnace alloy, electric arc furnaces or converter smelting and smelts to obtain strand, is refined
Stove furnace gas temperature is 1100-1300 DEG C, and strand is put into continuous casting and rolling in conticaster, is rolled in Continuous Casting Soft Reduction strand band wick-containing
It makes, continuous casting production induction heating apparatus is equipped in conticaster, to prevent liquid steel temperature from reducing, ensure continuous casting direct motion and product matter
Amount.
Second step, strand sensing heating：In the state that strand is after continuous casting after sensed heating device progress soaking directly
Abrasion-proof steel ball is rolled into ball rolling machine, the sensing heating of bar is initial before into being furnished with induction heating apparatus before ball rolling machine, rolling ball
Temperature reaches 850 DEG C, reduces energy consumption.
Third walks, abrasion-proof steel ball rolling and heat treatment integration：Strand band wick-containing enters ball rolling machine rolling, and material deformation is anti-
Power reduces, and realizes that aximal deformation value rolling, rolling pass are reduced, reduces the configuration of tandem mill sortie, save investment, and due to
Aximal deformation value rolls, and the plasticity of steel is more preferable, and deformation is deep and thorough, promotes that strand macro defect is loose, soldering of shrinkage cavity, improves
Product quality, by the production integrated with burial pit heat treatment of conticaster fluxion, strand does not land stacking storage, heating is omitted
Furnaceman's sequence, is packed to obtain the final product.
The application uses integrated casting and rolling.Sensing heating under the strand condition of high temperature, strand do not land, and avoid strand storehouse
Storage, slow cooling, transhipment link, and heating furnace is omitted；Strand rolling with liquid core, aximal deformation value deformation, reduces rolling pass, rolls
Rack time is few, reduces equipment and workshop investment；Direct Rolling wear-resistant ball after rolling bar avoids bar storage transhipment link.
Therefore, the application has the characteristics that few workshop, equipment investment, fast pace, high efficiency and high benefit.It reduces and throws than traditional process
20% or more money.
The application improves the product quality of wear-resistant ball bar and final products abrasion-proof steel ball.The application is by using centre
Packet sensing device thermal-stable liquid steel temperature and pulling speed of continuous casting improve the stabilization of slab quality, reduce segregation, continuous casting billet slighter compress
Improve the segregation and shrinkage cavity of strand, continuous casting billet is directly entered milling train after sensing heating at high operating temperatures, rolling with liquid core, steel
Resistance of deformation is small, it can be achieved that aximal deformation value deformation, can make loose, the effective soldering of shrinkage cavity defect in strand low power；Rolled bar
It carries out sensing heating at high operating temperatures afterwards, can effectively avoid the crack defect caused by heating speed is fast.By above-mentioned
Integrating for technology, than inside and the surface quality that traditional handicraft substantially improves wear-resistant ball, improves the service life of wear-resistant ball.
By with wick-containing fast pace rolling, strand induction hot sending rolling, rolling bar with the integrated of ball rolling machine and
The technologies such as line Residual Heat Treatment reduce by 25% or more energy consumption than traditional process ton ball.
The basic principles and main features and and its advantage of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments.It should be noted that above-mentioned embodiment does not limit this hair in any form
Bright, all technical solutions obtained by the way of equivalent or equivalent transformation all fall within protection scope of the present invention.
Claims (6)
1. a kind of integral manufacturing technique of abrasion-proof steel ball, it is characterised in that step is：
The first step：Refining furnace is put into after raw material is slightly refined and smelts to obtain strand, strand is put into continuous casting and rolling in conticaster, in continuous casting
Slighter compress strand rolling with liquid core；
Second step, strand sensing heating：Sensed heating device is directly entered after carrying out soaking in the state that strand is after continuous casting
Ball rolling machine rolls abrasion-proof steel ball；
Third walks, abrasion-proof steel ball rolling and heat treatment integration：Strand band wick-containing enters ball rolling machine rolling, material resistance of deformation drop
It is low, realize that aximal deformation value rolling, rolling pass reduce, reduce the configuration of tandem mill sortie, save investment, and due to becoming greatly
Shape amount rolls, and the plasticity of steel is more preferable, and deformation is deep and thorough, promotes that strand macro defect is loose, soldering of shrinkage cavity, improves product
Quality, by the production integrated with burial pit heat treatment of conticaster fluxion, strand does not land stacking storage, furnaceman is omitted
Sequence is packed to obtain the final product.
2. the integral manufacturing technique of abrasion-proof steel ball according to claim 1, it is characterised in that：The first step slightly refines mode
For induction furnace alloy, electric arc furnaces or converter smelting.
3. the integral manufacturing technique of abrasion-proof steel ball according to claim 1, it is characterised in that：The first step refining furnace
Temperature degree is 1100-1350 DEG C.
4. the integral manufacturing technique of abrasion-proof steel ball according to claim 1, it is characterised in that：The first step raw material uses
High-carbon steel.
5. the integral manufacturing technique of abrasion-proof steel ball according to claim 1, it is characterised in that：Conticaster in the first step
In be equipped with continuous casting production induction heating apparatus, to prevent liquid steel temperature from reducing, ensure continuous casting direct motion and product quality.
6. the integral manufacturing technique of abrasion-proof steel ball according to claim 1, it is characterised in that：The second step is into rolling ball
It is furnished with induction heating apparatus before machine, the sensing heating initial temperature for rolling bar before ball reaches 850 DEG C, reduces energy consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810310244.8A CN108515154A (en) | 2018-04-09 | 2018-04-09 | A kind of integral manufacturing technique of abrasion-proof steel ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810310244.8A CN108515154A (en) | 2018-04-09 | 2018-04-09 | A kind of integral manufacturing technique of abrasion-proof steel ball |
Publications (1)
| Publication Number | Publication Date |
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| CN108515154A true CN108515154A (en) | 2018-09-11 |
Family
ID=63432266
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07144262A (en) * | 1993-11-25 | 1995-06-06 | Katsuhiko Yamada | Continuous casting of steel and continuous casting/ rolling method |
| CN201333488Y (en) * | 2008-10-23 | 2009-10-28 | 常熟市龙腾特种钢有限公司 | Bearing steel ball blank intermediate-frequency heating continuous rolling device |
| CN103498103A (en) * | 2013-09-24 | 2014-01-08 | 北京科技大学 | High-hardenability big-diameter 65MnCr grinding ball and preparation method thereof |
| CN104148387A (en) * | 2014-07-11 | 2014-11-19 | 中冶东方工程技术有限公司 | Method for rolling continuous casting heat core |
| CN106191706A (en) * | 2016-08-16 | 2016-12-07 | 安徽瑞泰新材料科技有限公司 | A kind of corrosion-resistant impact-resistant abrasion-proof steel ball and preparation method thereof |
-
2018
- 2018-04-09 CN CN201810310244.8A patent/CN108515154A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07144262A (en) * | 1993-11-25 | 1995-06-06 | Katsuhiko Yamada | Continuous casting of steel and continuous casting/ rolling method |
| CN201333488Y (en) * | 2008-10-23 | 2009-10-28 | 常熟市龙腾特种钢有限公司 | Bearing steel ball blank intermediate-frequency heating continuous rolling device |
| CN103498103A (en) * | 2013-09-24 | 2014-01-08 | 北京科技大学 | High-hardenability big-diameter 65MnCr grinding ball and preparation method thereof |
| CN104148387A (en) * | 2014-07-11 | 2014-11-19 | 中冶东方工程技术有限公司 | Method for rolling continuous casting heat core |
| CN106191706A (en) * | 2016-08-16 | 2016-12-07 | 安徽瑞泰新材料科技有限公司 | A kind of corrosion-resistant impact-resistant abrasion-proof steel ball and preparation method thereof |
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Application publication date: 20180911 |