CN110218846A - A kind of high-carbon-chromium bearing steel emulsion normalizing processing method - Google Patents
A kind of high-carbon-chromium bearing steel emulsion normalizing processing method Download PDFInfo
- Publication number
- CN110218846A CN110218846A CN201910566258.0A CN201910566258A CN110218846A CN 110218846 A CN110218846 A CN 110218846A CN 201910566258 A CN201910566258 A CN 201910566258A CN 110218846 A CN110218846 A CN 110218846A
- Authority
- CN
- China
- Prior art keywords
- carbon
- forging
- bearing steel
- emulsifier
- chromium bearing
- 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
Classifications
-
- 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
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of high-carbon-chromium bearing steel emulsion normalizing processing methods, the following steps are included: step 1: being matched using oil emulsion and water as new normalizing medium, oil emulsion is mixed with water proportionally, then pours into the emulsion normalizing medium after the completion of abundant proportion mixing in emulsifier；Step 2: the high-carbon-chromium bearing steel after high temperature forging is come out of the stove by crane hanging component, it is then immersed in emulsifier；Step 3: being sling the forging immersed in emulsifier by crane, forging is cooled down by air-cooled；Step 4: carrying out repeating immersion in emulsifier by forging by crane and slinging operation, it is alternately cooled by liquid cooling and air-cooled repetition and high-carbon-chromium bearing steel forging is cooled down.The high-carbon-chromium bearing steel emulsion normalizing processing method, forms emulsion by the quantitative proportioning of oil emulsion and water, carries out liquid cooling to forging, while being alternately cooled by liquid cooling and air-cooled timing, completes the normalizing processing of forging.
Description
Technical field
The present invention relates to bearing steel normalizing processing technique field, specially a kind of high-carbon-chromium bearing steel emulsion normalizing processing
Method.
Background technique
Existing normalizing process method mostly used for mild steel and the lower medium carbon steel of phosphorus content it is air-cooled after forging, to obtain
The preferable Soxhlet body tissue of comprehensive performance；High-carbon-chromium bearing steel higher for phosphorus content, normalizing processing are sprayed after mostly using forging
Or quenching, to reduce or eliminate net secondary cementite.
The requirement of objective typing, military products bearing, the more general civilian goods of shield machine roller product to properties of product is higher；Therefore it is such
High-carbon-chromium bearing steel used in product has been unable to meet requirement of the normalizing to cooling rate, net using traditional air-cooled or misting cooling
The risk that shape secondary cementite is precipitated is larger.
In view of the above-mentioned problems, carrying out innovative design on the basis of original bearing steel normalizing processing method.
Summary of the invention
The purpose of the present invention is to provide a kind of high-carbon-chromium bearing steel emulsion normalizing processing methods, to solve above-mentioned background
Existing normalizing process is for the classifications such as objective typing, military products bearing, shield machine roller product using traditional air-cooled in technology
Or misting cooling has been unable to meet requirement of the normalizing to cooling rate, the larger problem of the risk that net secondary cementite is precipitated.
To achieve the above object, the invention provides the following technical scheme: a kind of high-carbon-chromium bearing steel emulsion normalizing is processed
Method the described method comprises the following steps:
Step 1: being matched using oil emulsion and water as new normalizing medium, proportionally oil emulsion is mixed with water, and
Concentration is measured, is in advance thoroughly mixed oil emulsion and water uniformly, and see whether that there are bubbles, it then will be abundant
Emulsion after the completion of proportion mixing pours into emulsifier, and the size of emulsifier can be set according to the size of forging
It is fixed, wait the immersion of forging cooling；
Step 2: the high-carbon-chromium bearing steel forging after high temperature forging is come out of the stove by crane hanging component, immersion is then moved
In emulsifier, the operation of first time liquid cooling is carried out, and crane is kept to avoid high-carbon to the drawing force of high-carbon-chromium bearing steel forging
Chromium bearing steel forgings are directly contacted with the bottom of emulsifier, influence the contact surface of high-carbon-chromium bearing steel forging and emulsion, together
When emulsifier height and volume can be designed according to the actual volume of high-carbon-chromium bearing steel forging, in emulsifier
Emulsion depth should there are a fixed spacings with the top of emulsifier, and high-carbon-chromium bearing steel forging is avoided to enter in emulsifier
When, emulsion is overflowed out of emulsifier；
Step 3: being sling the forging immersed in emulsifier by crane, until it is completely disengaged in emulsifier, pass through
It is air-cooled that natural cooling is carried out to forging, while during high-carbon-chromium bearing steel forging is sling, it should keep horizontal, avoid high carbon chromium
Bearing steel forgings shake, and increase security performance；
Step 4: carry out repeating immersion in emulsifier by forging by crane and sling operation, by liquid cooling and air-cooled
Repetition be alternately cooled high-carbon-chromium bearing steel forging cooled down, until high-carbon-chromium bearing steel forging is in crineous (580-530
DEG C), forging is then lifted out by emulsifier by crane and is cooled to room temperature by air-cooled, while slinging and immersing process
It should keep slowly carrying out, excessive velocities high-carbon-chromium bearing steel forging is avoided with emulsion Rapid contact, to be easy in the process of running
Emulsion is splashed out, while emulsifier nearby should forbid personnel close, emulsion spillage is avoided to bring injury to staff.
Step 5: rejected product and tissue for coarse net carbide are not less than level Four or thin according to above-mentioned steps
Rejected product melt down remaking by the rejected product of small net carbide, melts down the technology of remaking using the prior art, and
According to above-mentioned steps, carbon chromium bearing steel forgings are sling by crane facility and are immersed in emulsifier, liquid cooling is then passed through
Normalizing processing is carried out to it with air-cooled being alternately cooled.
Preferably, the emulsion normalizing medium by oil emulsion and water proportion be used as new normalizing medium, proportion be 2~
10% cutting oil, remaining is water.
Preferably, immersion cooling time of the high-carbon-chromium bearing steel forging in emulsifier is 5-10s.
Preferably, the high-carbon-chromium bearing steel forging leaves emulsifier and carries out the air-cooled time as 20s.
Preferably, the high-carbon-chromium bearing steel forging carries out cooling add to forging by liquid cooling and air-cooled being alternately cooled
Work, and being alternately cooled number is 8 times.
Compared with prior art, the beneficial effects of the present invention are: the high-carbon-chromium bearing steel emulsion normalizing processing method, leads to
It crosses and new oil-in-water type coolant is formed using oil emulsion and water quantitative proportioning, cooling velocity is greater than what net secondary cementite was precipitated
Critical speed avoids the precipitation of net secondary cementite, while being classified cooling by liquid cooling and air-cooled alternating, avoids forging
Cracking risk caused by part inside and outside temperature stress steeply rises, so that the normalizing mode can satisfy high-carbon-chromium bearing steel elimination
The requirement of net secondary cementite, while underproof forging can be re-worked, the recycling rate of waterused of waste product is improved,
It economizes on resources.
Detailed description of the invention
Fig. 1 is the cooling schematic diagram of the air-cooled classification of liquid cooling of the present invention；
Fig. 2 is normalizing process schematic diagram of the present invention；
Fig. 3 is Rework Technics schematic diagram of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of high-carbon-chromium bearing steel emulsion normalizing processing side
Method the described method comprises the following steps:
Step 1: being matched using oil emulsion and water as new normalizing medium, proportionally oil emulsion is mixed with water, and
Concentration is measured, is in advance thoroughly mixed oil emulsion and water uniformly, and see whether that there are bubbles, it then will be abundant
Emulsion after the completion of proportion mixing pours into emulsifier, and the size of emulsifier can be set according to the size of forging
It is fixed, wait the immersion of forging cooling；
Step 2: the high-carbon-chromium bearing steel forging after high temperature forging is come out of the stove by crane hanging component, immersion is then moved
In emulsifier, the operation of first time liquid cooling is carried out, and crane is kept to avoid high-carbon to the drawing force of high-carbon-chromium bearing steel forging
Chromium bearing steel forgings are directly contacted with the bottom of emulsifier, influence the contact surface of high-carbon-chromium bearing steel forging and emulsion, together
When emulsifier height and volume can be designed according to the actual volume of high-carbon-chromium bearing steel forging, in emulsifier
Emulsion depth should there are a fixed spacings with the top of emulsifier, and high-carbon-chromium bearing steel forging is avoided to enter in emulsifier
When, emulsion is overflowed out of emulsifier；
Step 3: being sling the forging immersed in emulsifier by crane, until it is completely disengaged in emulsifier, pass through
It is air-cooled that natural cooling is carried out to forging, while during high-carbon-chromium bearing steel forging is sling, it should keep horizontal, avoid high carbon chromium
Bearing steel forgings shake, and increase security performance；
Step 4: carry out repeating immersion in emulsifier by forging by crane and sling operation, by liquid cooling and air-cooled
Repetition be alternately cooled high-carbon-chromium bearing steel forging cooled down, until high-carbon-chromium bearing steel forging is in crineous (580-530
DEG C), forging is then lifted out by emulsifier by crane and is cooled to room temperature by air-cooled, while slinging and immersing process
It should keep slowly carrying out, excessive velocities high-carbon-chromium bearing steel forging is avoided with emulsion Rapid contact, to be easy in the process of running
Emulsion is splashed out, while emulsifier nearby should forbid personnel close, emulsion spillage is avoided to bring injury to staff.
Step 5: rejected product and tissue for coarse net carbide are not less than level Four or thin according to above-mentioned steps
Rejected product melt down remaking by the rejected product of small net carbide, melts down the technology of remaking using the prior art, and
According to above-mentioned steps, carbon chromium bearing steel forgings are sling by crane facility and are immersed in emulsifier, liquid cooling is then passed through
Normalizing processing is carried out to it with air-cooled being alternately cooled.
Emulsion normalizing medium is matched by oil emulsion and water as new normalizing medium, and proportion is 2~10% cutting oil,
Remaining is water, is used as new normalizing medium using oil emulsion and water proportion, cooling velocity between water cooling and it is oily it is cold between so that its
It is moderate to match the emulsion cooling velocity formed, avoids the precipitation of net secondary cementite, while cutting oil to have superpower profit
Sliding extreme pressure effect, effective protection forging simultaneously prolongs its service life, and during cooling down to high-carbon-chromium bearing steel forging, rises
To good protective effect, at the same superpower lubricant effect, so that forging is when leaving in the emulsifier, it is remaining on forging
Emulsion can quickly be flow in emulsifier by gravity, so that the surface of forging is sufficiently contacted with air, so that forging
It is cooling uniform, reach good air cooling effect；
Immersion cooling time of the high-carbon-chromium bearing steel forging in emulsifier is 5-10s, passes through the emulsion in emulsifier
The carbon chromium bearing steel forgings come out of the stove tentatively cool down, while will be controlled in 5-10s the time, net secondary cementite is avoided
Precipitation, keep high-carbon-chromium bearing steel forging intensity and quality be guaranteed；
High-carbon-chromium bearing steel forging leaves emulsifier and carries out the air-cooled time as 20s, and high-carbon-chromium bearing steel forging is trapped in
Time in air is 20s, and remaining emulsion on high-carbon-chromium bearing steel forging is allowed to fall carry out emulsifier completely
It is interior, so that high-carbon-chromium bearing steel forging comes into full contact with air, improve air-cooling efficiency；
High-carbon-chromium bearing steel forging carries out cooling processing to forging by liquid cooling and air-cooled being alternately cooled, and is alternately cooled number
Be 8 times, by multiple liquid cooling and it is air-cooled be alternately cooled, avoid cracking caused by forging inside and outside temperature stress steeply rises
Risk protects high-carbon-chromium bearing steel forging, so that the normalizing mode can satisfy high-carbon-chromium bearing steel and eliminate netted two
The requirement of secondary cementite.
Embodiment one: by oil emulsion and water according to 2%:98%, 5%:95% and 10%:90%(oil emulsion: water) determined respectively
Amount proportion and mixing, three kinds of emulsions after proportion according to the first step, poured into different emulsifiers respectively and done
It identifies, then sling forging by crane hanger and is completely immersed in emulsifier out, then according to second step to the 4th
Shown in step, forging is repeated to immerse and sling in emulsifier by crane hanger, by liquid cooling and it is air-cooled to forging into
Then three forging are carried out alternately normalizing in the emulsifier of three above-mentioned different ratios respectively and added by row normalizing processing
Work, observation and detection carry out the forging of normalizing by the emulsion of three kinds of different ratios, it was therefore concluded that, which kind of oil emulsion and water
The emulsion effect that ratio is mixed into is best；
Embodiment two: it according to second step and the 4th step, controls forging and alternately immerses the cooling time in emulsion, make it
Immersing the time is respectively 5s and 10s, then observes and detect the normalizing situation of forging, it was therefore concluded that, the combination pair of which kind of time
The alternating normalizing effect of forging is best；
Embodiment three: being related to the Rework Technics of forging, and the rejected product and tissue for coarse net carbide are not less than four
The rejected product of grade or fine mesh carbide is needed to melt down and be reprocessed for the said goods, while according to the first step to the 4th step
It is shown, cooperate air-cooled alternate mode to reprocess workpiece by the emulsion and liquid of quenching of quantitative proportioning.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of high-carbon-chromium bearing steel emulsion normalizing processing method, it is characterised in that: the described method comprises the following steps:
Step 1: being matched using oil emulsion and water as new normalizing medium, proportionally oil emulsion is mixed with water, and
Concentration is measured, is in advance thoroughly mixed oil emulsion and water uniformly, and see whether that there are bubbles, it then will be abundant
Emulsion after the completion of proportion mixing pours into emulsifier, and the size of emulsifier can be set according to the size of forging
It is fixed, wait the immersion of forging cooling；
Step 2: the high-carbon-chromium bearing steel forging after high temperature forging is come out of the stove by crane hanging component, immersion is then moved
In emulsifier, the operation of first time liquid cooling is carried out, and crane is kept to avoid high-carbon to the drawing force of high-carbon-chromium bearing steel forging
Chromium bearing steel forgings are directly contacted with the bottom of emulsifier, influence the contact surface of high-carbon-chromium bearing steel forging and emulsion, together
When emulsifier height and volume can be designed according to the actual volume of high-carbon-chromium bearing steel forging, in emulsifier
Emulsion depth should there are a fixed spacings with the top of emulsifier, and high-carbon-chromium bearing steel forging is avoided to enter in emulsifier
When, emulsion is overflowed out of emulsifier；
Step 3: being sling the forging immersed in emulsifier by crane, until it is completely disengaged in emulsifier, pass through
It is air-cooled that natural cooling is carried out to forging, while during high-carbon-chromium bearing steel forging is sling, it should keep horizontal, avoid high carbon chromium
Bearing steel forgings shake, and increase security performance；
Step 4: carry out repeating immersion in emulsifier by forging by crane and sling operation, by liquid cooling and air-cooled
Repetition be alternately cooled high-carbon-chromium bearing steel forging cooled down, until high-carbon-chromium bearing steel forging is in crineous (580-530
DEG C), forging is then lifted out by emulsifier by crane and is cooled to room temperature by air-cooled, while slinging and immersing process
It should keep slowly carrying out, excessive velocities high-carbon-chromium bearing steel forging is avoided with emulsion Rapid contact, to be easy in the process of running
Emulsion is splashed out, while emulsifier nearby should forbid personnel close, emulsion spillage is avoided to bring injury to staff.
Step 5: rejected product and tissue for coarse net carbide are not less than level Four or tiny net according to above-mentioned steps
Rejected product melt down remaking by the rejected product of shape carbide, melts down the technology of remaking using the prior art, and according to
Carbon chromium bearing steel forgings are sling by crane facility and are immersed in emulsifier by above-mentioned steps, then pass through liquid cooling and sky
Cold being alternately cooled carries out normalizing processing to it.
2. a kind of high-carbon-chromium bearing steel emulsion normalizing processing method according to claim 1, it is characterised in that: the cream
Change liquid normalizing medium to be matched by oil emulsion and water as new normalizing medium, proportion is 2~10% cutting oil, remaining is water.
3. a kind of high-carbon-chromium bearing steel emulsion normalizing processing method according to claim 1, it is characterised in that: the height
Immersion cooling time of the carbon chromium bearing steel forgings in emulsifier is 5-10s.
4. a kind of high-carbon-chromium bearing steel emulsion normalizing processing method according to claim 1, it is characterised in that: the height
Carbon chromium bearing steel forgings leave emulsifier and carry out the air-cooled time as 20s.
5. a kind of high-carbon-chromium bearing steel emulsion normalizing processing method according to claim 1, it is characterised in that: the height
Carbon chromium bearing steel forgings carry out cooling processing to forging by liquid cooling and air-cooled being alternately cooled, and being alternately cooled number is 8 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910566258.0A CN110218846A (en) | 2019-06-27 | 2019-06-27 | A kind of high-carbon-chromium bearing steel emulsion normalizing processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910566258.0A CN110218846A (en) | 2019-06-27 | 2019-06-27 | A kind of high-carbon-chromium bearing steel emulsion normalizing processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110218846A true CN110218846A (en) | 2019-09-10 |
Family
ID=67815107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910566258.0A Pending CN110218846A (en) | 2019-06-27 | 2019-06-27 | A kind of high-carbon-chromium bearing steel emulsion normalizing processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110218846A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020951A (en) * | 2007-02-07 | 2007-08-22 | 钢铁研究总院 | Controlled cooling process and water cooler for high carbon and chromium bearing steel pipe blank after hot rolling |
| JP2008297620A (en) * | 2007-06-04 | 2008-12-11 | Nachi Fujikoshi Corp | Method for quenching high carbon-chromium bearing steel, high carbon-chromium bearing steel and bearing part and rolling bearing |
| 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 |
| 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 |
| CN105648170A (en) * | 2014-11-14 | 2016-06-08 | 北大方正集团有限公司 | Control method for bearing steel network carbides and banded carbides and bearing steel |
| CN108796179A (en) * | 2018-07-02 | 2018-11-13 | 洛阳Lyc轴承有限公司 | A kind of water-cooling method of GCr15SiMn steel oversize forging blank normalizing |
| WO2018214863A1 (en) * | 2017-05-26 | 2018-11-29 | 宝山钢铁股份有限公司 | Bearing steel for use in automobile wheels and manufacturing process therefor |
-
2019
- 2019-06-27 CN CN201910566258.0A patent/CN110218846A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020951A (en) * | 2007-02-07 | 2007-08-22 | 钢铁研究总院 | Controlled cooling process and water cooler for high carbon and chromium bearing steel pipe blank after hot rolling |
| JP2008297620A (en) * | 2007-06-04 | 2008-12-11 | Nachi Fujikoshi Corp | Method for quenching high carbon-chromium bearing steel, high carbon-chromium bearing steel and bearing part and rolling bearing |
| 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 |
| 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 |
| CN105648170A (en) * | 2014-11-14 | 2016-06-08 | 北大方正集团有限公司 | Control method for bearing steel network carbides and banded carbides and bearing steel |
| WO2018214863A1 (en) * | 2017-05-26 | 2018-11-29 | 宝山钢铁股份有限公司 | Bearing steel for use in automobile wheels and manufacturing process therefor |
| CN108796179A (en) * | 2018-07-02 | 2018-11-13 | 洛阳Lyc轴承有限公司 | A kind of water-cooling method of GCr15SiMn steel oversize forging blank normalizing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1258414C (en) | Method and device for continuous casting of metal | |
| CN111979375B (en) | Molten iron KR stirring mixing characteristic quantitative characterization method and intelligent desulfurization method | |
| CN102581244A (en) | Online control system and control method for surface quality of continuous casting billet | |
| CN110989510A (en) | Hot galvanizing product full-process quality control and grade automatic judgment system | |
| CN110218846A (en) | A kind of high-carbon-chromium bearing steel emulsion normalizing processing method | |
| CN105203732A (en) | Spring steel slab component segregation quantitative analysis method | |
| CN108446706A (en) | A kind of abrasive grain material automatic identifying method based on color principal Component Extraction | |
| CN109978828A (en) | A kind of track for a train quality discrimination method and system based on image procossing | |
| CN108486331A (en) | The working method of the automatic heat treatment system of stainless steel | |
| CN110394432B (en) | Method and device for inspecting continuous casting protection pouring | |
| CN105755222B (en) | A kind of high yield, low nitrogen hypoxemia electroslag bearing steel forge piece manufacturing process | |
| Mihalčová et al. | Control of activity of aircraft engines by analysis of wear debris particles in terms of shape and size | |
| Cwudziński et al. | Numerical analysis of liquid steel flow structure in the one strand slab tundish with subflux turbulence controller and dam | |
| CN109022720A (en) | It is a kind of to improve the cooling device of quenching | |
| CN110070245A (en) | A kind of driver's scoring arrangement method based on driving data | |
| CN107695116A (en) | A kind of lubrication wiredrawing powder | |
| Troell et al. | Influence of ageing and contamination of polymer quenchants on cooling characteristics | |
| Swain et al. | Effect of initial solidification characteristics on longitudinal crack formation in thin slab caster | |
| Bhattacharya et al. | Development of next-generation impact pads for producing ultraclean steel using mathematical models and plant trials | |
| CN105170673B (en) | The double cooling devices of spoke wire drawing machine | |
| JPH0633135A (en) | Method for quenching steel and apparatus therefor | |
| Anapagaddi et al. | Exploration of the design space in continuous casting Tundish | |
| JPS6360056A (en) | Method and mold for continuously casting stainless steel containing titanium | |
| RU2775550C1 (en) | Method for determining the dispersion capacity of an oil-water emulsion | |
| Zhang et al. | Holistic Problem of Cooling Effect of Vertically Oil-Quenched Shaft-Type Workpiece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Applicant after: LUOYANG LYC BEARING Co.,Ltd. Applicant after: Luoyang Luoxi precision forging Heavy Industry Co., Ltd Address before: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Applicant before: LUOYANG LYC BEARING Co.,Ltd. Applicant before: Luoyang Luoshafts Forging Plant |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190910 |