CN110284075A - The production technology of movable iron core of electromagnetic valve - Google Patents
The production technology of movable iron core of electromagnetic valve Download PDFInfo
- Publication number
- CN110284075A CN110284075A CN201910595448.5A CN201910595448A CN110284075A CN 110284075 A CN110284075 A CN 110284075A CN 201910595448 A CN201910595448 A CN 201910595448A CN 110284075 A CN110284075 A CN 110284075A
- Authority
- CN
- China
- Prior art keywords
- content
- iron core
- electromagnetic valve
- movable iron
- production technology
- 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
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
-
- 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
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- 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
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Magnetically Actuated Valves (AREA)
- Heat Treatment Of Articles (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The invention discloses a kind of production technologies of movable iron core of electromagnetic valve, the chemical analysis for the alloy material that the technique uses is as follows: C content 0.010~0.035%, Si content 1.00~1.50%, Mn content 0.70~1.0%, P content 0.010~0.035%, S content 0.010~0.035%, Cr content 16.5~18.50%, Mo content 0.20~0.60%, W content 0.20~0.70%, surplus Fe；By adjusting the chemical analysis of material, and machining is replaced using warm upsetting technology generations, so that the production technology of dynamic iron core reduces material loss, improve the stock utilization in the magnetic property and dynamic iron core process of dynamic iron core, processing technology is simple, the cracking breakout of high production efficiency, movable iron core of electromagnetic valve is low, especially suitable for processing solenoid valve ferrite dynamic iron core using warm upsetting technique.
Description
Technical field
The present invention relates to solenoid valve ferrite stainless steel material, especially a kind of easy sealing alloy material of solenoid valve with
The production technology of dynamic iron core.
Background technique
Solenoid valve is with ferrite stainless steel bar professional standard on April 1st, 2018 by People's Republic of China's industry
It issues and implements with information-based portion.The standard drafting unit: Jin Zeli special alloy limited liability company, Hengyang City, high-speed rail research are total
Institute, industrial information research on standard institute.Main draftsman: Zhong Changlin, Zhao Dongliang, Zhang Jianfu etc..
The typical trade mark of existing solenoid valve Cutting free ferrite stainless steel bar is Y0Cr17SiS, is based on the alloy material
The dynamic iron core production technology of material is complicated, causes the cracking breakout of dynamic iron core higher, corrosion resistance is inadequate.
Summary of the invention
The purpose of the present invention is overcoming, manufacturing procedure of the existing technology is various, process easily causes electromagnetism valve actuation iron
Core part the deficiencies of there are crackle hidden danger, poor corrosion resistance, high production cost, and a kind of easy sealing alloy material of solenoid valve is provided
Material, and based on this alloy material, demand is a kind of suitable for the solenoid valve processing technology of ferrite dynamic iron core.
Realizing the technical solution of above-mentioned purpose of the present invention is: providing a kind of production technology of movable iron core of electromagnetic valve, including such as
Lower step:
(1) using wire rod made of the easy sealing alloy material of solenoid valve or bar as raw material, using resistance heating by former material
Material carries out on-line coating machine plated film, and heating and temperature control is at 60~90 DEG C when plated film；
The easy sealing alloy material of solenoid valve, by weight percentage, chemical analysis is as follows:
C content 0.010~0.035%, Si content 1.00~1.50%, Mn content 0.70~1.0%, P content 0.010~0.035%,
S content 0.010~0.035%, Cr content 16.5~18.50%, Mo content 0.20~0.60%, W content 0.20~0.70%, surplus
For Fe；
(2) step (1) treated raw material are used into online induction heating, to cut into several short for size on demand after heating
Stub is sent into multistation automatic moulding pier forging machine by stick, at 500~650 DEG C through primary warm pier, obtains movable iron core of electromagnetic valve half
Finished product；
(3) the movable iron core of electromagnetic valve semi-finished product of above-mentioned temperature pier are sent into annealing furnace and carry out the processing of magnetic property annealing process；
(4) semi-finished product after detection magnetic property is qualified obtain movable iron core of electromagnetic valve finished product using finishing.
Preferably, Si content 1.30~1.40%, C content 0.025~0.030%, S content 0.11~0.14%.
Preferably, Mo is identical as the content of W, and is 0.45~0.55%.
Alloys producing of the invention is further analyzed below:
Silicon (Si) in alloy material chemical analysis: silicon is in steelmaking process plus silicon is as reducing agent and deoxidier.If silicon contains
Amount is more than 0.5%, even if silicon alloying element.Silicon can significantly improve the elastic limit, yield point and tensile strength of steel, in quenched knot
1.0~1.2% silicon is added in structure steel, intensity can be improved 15~20%, and siliceous 1~4% mild steel has high magnetic permeability.
Carbon (C) in the present invention: phosphorus content increases in steel, and yield point and tensile strength increase, but plasticity and impact reduce,
When phosphorus content is more than 0.23%, the welding performance of steel degenerates, and is accordingly used in the low-alloy structural steel of welding, phosphorus content is generally not
More than 0.20%.Carbon amounts height can also reduce the atmospheric corrosion resistance ability of steel, outdoor stock ground high-carbon steel with regard to easy-to-rust；In addition, carbon
It can increase the cold brittleness and aging sensitivity of steel.
Manganese (Mn) in the present invention: in steelmaking process, manganese is good deoxidier and desulfurizing agent, contains manganese in general steel
0.30-0.50%.Even if the steel of more general steel amount not only has enough tough when 0.70% or more being added in carbon steel " manganese steel "
Property, and have higher intensity and hardness, the quenching property of steel is improved, the hot-working character of steel is improved, as 16Mn steel ratio A3 yield point is high
40%。
Phosphorus (P) in the present invention: under normal circumstances, phosphorus is harmful element in steel, increases the cold brittleness of steel, makes welding performance
It degenerates, reduces plasticity, cold-bending property is made to degenerate.Therefore usually require that phosphorus content is less than 0.045% in steel, high-quality steel requires lower
A bit.
Sulphur (S) in the present invention: sulphur is also harmful element in general.So that steel is generated red brittleness, reduces the extension of steel
Property and toughness, cause crackle in forging and rolling.Sulphur is also unfavorable to welding performance, reduces corrosion resistance.So usually requiring that
Less than 0.055%, high-quality steel is required less than 0.040% sulfur content.0.010~0.035% is added in steel, preferably 0.08-0.20%
Sulphur, machinability, commonly referred to as automatic steel can be improved.
Chromium (Cr) in the present invention: in structural steel and tool steel, chromium can significantly improve intensity, hardness and wearability, but drop simultaneously
Inductile and toughness.Chromium can improve the inoxidizability and corrosion resistance of steel again, thus be stainless steel, the important alloy member of heat resisting steel
Element.
Tungsten (W) molybdenum (Mo) in the present invention: can make the crystal grain refinement of steel, improve harden ability and thermostrength, protect at high temperature
Hold enough intensity and creep resisting ability (being deformed at high temperature by stress for a long time, claim creep).It is added in structural steel
Molybdenum can improve mechanical performance.It can also inhibit steel alloy brittleness due to caused by fire, red property can be improved in tool steel.
The combination of silicon and molybdenum, tungsten, chromium is improved corrosion resistance and oxidation resistant effect, can manufacture corrosion resisting steel, corrosion resistance
It can greatly improve.
Processing technology of the invention is simple, and processing dynamic iron core only needs once upper film, primary warm upsetting and primary annealing, then through magnetic
Performance detection, finishing, cleaning and drying can be processed into movable iron core of electromagnetic valve, cracking breakout is lower than 10%, high production efficiency, with
For 5 station automatic moulding pier forging machines, 100-130 per minute/platform machine of yield, per tour 8 hourly averages, 50,000/platform machine, especially
Suitable for processing solenoid valve ferrite dynamic iron core using warm upsetting technique.
The beneficial effects of the present invention are: the present invention has adjusted the chemical component of solenoid valve easily welding material, and use
Warm upsetting technology generations replace machining, reduce material loss, improve in the magnetic property and dynamic iron core process of dynamic iron core
Stock utilization, and improve the corrosion resistance of dynamic iron core.
Specific embodiment
Detailed content of the invention is further described below in conjunction with specific embodiment.
Embodiment 1: a kind of solenoid valve easily welds the production technology with material, the chemical analysis (weight percent) of raw material
It is as follows:
C content 0.025%, Si content 1.40%, Mn content 0.85%, P content 0.025%, S content 0.013%, Cr content 17.0%,
Mo content 0.30%, W content 0.7%, surplus are iron Fe.
The warm pier production technology of movable iron core of electromagnetic valve comprises the technical steps that:
One, the ferrite stainless steel bar or wire rod for selecting 9.80 ± 0.02mm of ￠, using resistance heating on-line coating machine plated film,
Heating and temperature control is within the scope of 70~80 DEG C when upper film；
Two, using 18 kilo hertzs of the online induction heating of frequency conversion temperature adjustment superaudio, 600 ± 10 DEG C are heated the material to, to meet temperature
Pier forms and does not crack hidden danger, then after above-mentioned material is cut into stub one by one by the weight demands of every components,
By being only sent into multistation automatic moulding pier forging machine, primary warm-natured pier is at movable iron core of electromagnetic valve semi-finished product；
Three, the good movable iron core of electromagnetic valve semi-finished product of above-mentioned temperature pier are used into 850 ± 10 DEG C of anneals, 850 ± 10 DEG C of heat preservations
20-30 minutes, 580 ± 10 DEG C were come out of the stove, so that its magnetic property reaches standard state, the grain size of movable iron core of electromagnetic valve semi-finished product is
6 ~ 9 grades, meet the needs of minimum operating voltage and temperature rise；
Four, random sampling detects the magnetic property of above-mentioned movable iron core of electromagnetic valve semi-finished product, is finish-machined to movable iron core of electromagnetic valve after qualified
Finished product；
Five, movable iron core of electromagnetic valve finished product is sent into Special magnetic particle detector to detect by only nondestructive inspection, it is ensured that every electromagnetism valve actuation
Iron core finished product, which needs to weld, does not have crackle hidden danger with sealing position；
Six, by after the qualified movable iron core of electromagnetic valve finished product progress ultrasonic cleaning of magnetic powder inspection detection is clean, drying is cased
Storage.
The present embodiment temperature pier part has no that cracking etc. is abnormal, and warm pier half-finished parts reserved margin is sufficient, meets finishing
It is required that；The movable iron core of electromagnetic valve being processed into has no crackle through magnetic powder detection；It (is quality point in 3% NaCl aqueous solution
Number) in corrosion-resistant 2900 hours.Its magnetic property the results are shown in Table 1:
Embodiment 2: the raw material that movable iron core of electromagnetic valve uses are substantially the same manner as Example 1；The difference of raw material and embodiment 1 exists
In: Mo content 0.35%, W content 0.65%.
Using production technology substantially the same manner as Example 1, production technology the difference from embodiment 1 is that: third step is moved back
Fire process uses 980 ± 10 DEG C heat preservation 10-20 minutes, and 580 ± 10 DEG C are come out of the stove, it is therefore an objective to and restore magnetic property and reaches standard state,
The grain size of movable iron core of electromagnetic valve semi-finished product is 6 ~ 8 grades, meets the needs of minimum operating voltage and temperature rise.
The present embodiment temperature pier part has no that cracking etc. is abnormal, and warm pier half-finished parts reserved margin is sufficient, meets finishing
It is required that；The movable iron core of electromagnetic valve being processed into has no crackle through magnetic powder detection；It (is quality point in 3% NaCl aqueous solution
Number) in corrosion-resistant 2900 hours.Its magnetic property the results are shown in Table 2:
Embodiment 3: the raw material that movable iron core of electromagnetic valve uses are substantially the same manner as Example 1；The difference of raw material and embodiment 1 exists
In: Mo content 0.65%, W content 0.35%.
Using production technology same as Example 1, obtained movable iron core of electromagnetic valve finished product, cracking breakout < 0.1%；3%
NaCl aqueous solution in corrosion-resistant 2900 hours.
Embodiment 4: the raw material that movable iron core of electromagnetic valve uses are substantially the same manner as Example 1；The area of raw material and embodiment 1
It is not: Mo content 0.45%, W content 0.45%.
Using production technology same as Example 1, obtained movable iron core of electromagnetic valve finished product, cracking breakout cracking breakout <
0.1%；Corrosion-resistant 3800 hours in 3% NaCl aqueous solution.
Embodiment 5: the raw material that movable iron core of electromagnetic valve uses are substantially the same manner as Example 2；The area of raw material and embodiment 2
It is not: Mo content 0.55%, W content 0.55%.
Using production technology same as Example 2, obtained movable iron core of electromagnetic valve finished product, cracking breakout < 0.1%；3%
NaCl aqueous solution in corrosion-resistant 4000 hours.
Embodiment 6: the raw material that movable iron core of electromagnetic valve uses are substantially the same manner as Example 2；The area of raw material and embodiment 2
It is not: C content 0.015%, Si content 1.50%, S content 0.020%.
Using production technology same as Example 2, obtained movable iron core of electromagnetic valve finished product, cracking breakout < 0.1%；3%
NaCl aqueous solution in corrosion-resistant 2600 hours.
Comparative example: the composition of raw material that movable iron core of electromagnetic valve uses are as follows: C content 0.025%, Si content 1.80%, Mn content
0.85%, P content 0.025%, S content 0.030%, Cr content 17.0%, Mo content 0.30%, surplus is iron Fe.
Using production technology same as Example 1, obtained movable iron core of electromagnetic valve finished product, cracking breakout be 17.5 ±
0.5%；Corrosion-resistant 1800 hours in 3% NaCl aqueous solution.
Claims (10)
1. a kind of production technology of movable iron core of electromagnetic valve, characterized in that include the following steps:
(1) using wire rod made of the easy sealing alloy material of solenoid valve or bar as raw material, using resistance heating by former material
Material carries out on-line coating machine plated film, and heating and temperature control is at 60~90 DEG C when plated film；
The easy sealing alloy material of solenoid valve, by weight percentage, chemical analysis is as follows:
C content 0.010~0.035%, Si content 1.00~1.50%, Mn content 0.70~1.0%, P content 0.010~0.035%,
S content 0.010~0.035%, Cr content 16.5~18.50%, Mo content 0.20~0.60%, W content 0.20~0.70%, surplus
For Fe；
(2) step (1) treated raw material are used into online induction heating, size cuts into several on demand after heating
Stub is sent into multistation automatic moulding pier forging machine by stub, at 500~650 DEG C through primary warm pier, obtains movable iron core of electromagnetic valve
Semi-finished product；
(3) the movable iron core of electromagnetic valve semi-finished product of above-mentioned temperature pier are sent into annealing furnace and carry out the processing of magnetic property annealing process；
(4) semi-finished product after detection magnetic property is qualified obtain movable iron core of electromagnetic valve finished product using finishing.
2. production technology according to claim 1, characterized in that Si content 1.30~1.40%, C content 0.025~
0.030%, S content 0.11~0.14%.
3. production technology according to claim 1, characterized in that Mo is identical as the content of W, and is 0.45~0.55%.
4. production technology according to claim 1 or 2 or 3, characterized in that by step (2) treated electromagnetism valve actuation iron
Core semi-finished product use 850 ± 10 DEG C of anneals.
5. production technology according to claim 4, characterized in that by step (2) treated movable iron core of electromagnetic valve half at
Product use 850 ± 10 DEG C of anneals when, 850 ± 10 DEG C heat preservation 20-30 minutes.
6. production technology according to claim 5, characterized in that by step (2) treated movable iron core of electromagnetic valve half at
Product use 850 ± 10 DEG C of anneals, and 850 ± 10 DEG C after heat preservation 20-30 minutes, 580 ± 10 DEG C are come out of the stove.
7. production technology according to claim 1 or 2 or 3, characterized in that when step (3) makes annealing treatment, electromagnetism valve actuation
The grain size of iron core semi-finished product is 6 ~ 9 grades.
8. production technology according to claim 4, characterized in that when step (3) makes annealing treatment, movable iron core of electromagnetic valve half
The grain size of finished product is 6 ~ 9 grades.
9. production technology according to claim 5, characterized in that when step (3) makes annealing treatment, movable iron core of electromagnetic valve half
The grain size of finished product is 6 ~ 9 grades.
10. production technology according to claim 6, characterized in that when step (3) makes annealing treatment, movable iron core of electromagnetic valve half
The grain size of finished product is 6 ~ 9 grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910595448.5A CN110284075B (en) | 2019-07-03 | 2019-07-03 | Production process of movable iron core of electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910595448.5A CN110284075B (en) | 2019-07-03 | 2019-07-03 | Production process of movable iron core of electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110284075A true CN110284075A (en) | 2019-09-27 |
| CN110284075B CN110284075B (en) | 2020-10-27 |
Family
ID=68021863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910595448.5A Active CN110284075B (en) | 2019-07-03 | 2019-07-03 | Production process of movable iron core of electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110284075B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111360491A (en) * | 2020-03-27 | 2020-07-03 | 芜湖罗尔科精密工业有限公司 | Electromagnetic valve part processing method of novel material |
| CN113953770A (en) * | 2021-11-11 | 2022-01-21 | 苏州佰富杏一智能制造有限公司 | Machining process of magnetic core of electromagnetic valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07145453A (en) * | 1993-11-22 | 1995-06-06 | Sumitomo Metal Ind Ltd | Ferritic stainless steel for automotive exhaust manifold |
| CN101876035A (en) * | 2009-05-01 | 2010-11-03 | 衡阳市金则利特种合金有限公司 | Lead-contained anticorrosion soft magnetic alloy |
| CN101892440A (en) * | 2009-05-22 | 2010-11-24 | 宝山钢铁股份有限公司 | High-resistance, easy-cutting and corrosion-resistant soft magnetic alloy for electromagnetic valve |
| CN102581556A (en) * | 2012-02-23 | 2012-07-18 | 绍兴康健镁业有限公司 | Processing technology of static iron core of electromagnetic valve |
| CN103805875A (en) * | 2012-11-08 | 2014-05-21 | 无锡新三洲特钢有限公司 | Stainless steel electromagnetic valve core iron preparation method |
| CN105074035A (en) * | 2013-03-27 | 2015-11-18 | 新日铁住金不锈钢株式会社 | Ferritic stainless steel with excellent surface corrosion resistance after polishing, and process for producing same |
-
2019
- 2019-07-03 CN CN201910595448.5A patent/CN110284075B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07145453A (en) * | 1993-11-22 | 1995-06-06 | Sumitomo Metal Ind Ltd | Ferritic stainless steel for automotive exhaust manifold |
| CN101876035A (en) * | 2009-05-01 | 2010-11-03 | 衡阳市金则利特种合金有限公司 | Lead-contained anticorrosion soft magnetic alloy |
| CN101892440A (en) * | 2009-05-22 | 2010-11-24 | 宝山钢铁股份有限公司 | High-resistance, easy-cutting and corrosion-resistant soft magnetic alloy for electromagnetic valve |
| CN102581556A (en) * | 2012-02-23 | 2012-07-18 | 绍兴康健镁业有限公司 | Processing technology of static iron core of electromagnetic valve |
| CN103805875A (en) * | 2012-11-08 | 2014-05-21 | 无锡新三洲特钢有限公司 | Stainless steel electromagnetic valve core iron preparation method |
| CN105074035A (en) * | 2013-03-27 | 2015-11-18 | 新日铁住金不锈钢株式会社 | Ferritic stainless steel with excellent surface corrosion resistance after polishing, and process for producing same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111360491A (en) * | 2020-03-27 | 2020-07-03 | 芜湖罗尔科精密工业有限公司 | Electromagnetic valve part processing method of novel material |
| CN113953770A (en) * | 2021-11-11 | 2022-01-21 | 苏州佰富杏一智能制造有限公司 | Machining process of magnetic core of electromagnetic valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110284075B (en) | 2020-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3569725B1 (en) | Duplex stainless steel and method for producing same | |
| CN103216509B (en) | High-strength bolt and processing method thereof | |
| EP3150735B1 (en) | Hot work tool material and method for manufacturing hot work tool | |
| CN109811262B (en) | Manufacturing process of 2.25Cr1Mo0.25V steel heavy wall thickness hydrogenated forging | |
| JP2011149089A (en) | High-strength spring steel | |
| CN110284075A (en) | The production technology of movable iron core of electromagnetic valve | |
| CN104451437A (en) | Method for preparing large high-performance cold roll | |
| WO2010045781A1 (en) | High-alloyed cold die steel | |
| CA1080516A (en) | Alloy steel | |
| CN108941401B (en) | Processing technology of high-temperature-resistant and high-pressure-resistant forging for steam turbine | |
| CN111088448A (en) | Cobalt-based high-temperature alloy strip foil and preparation method thereof | |
| KR100589027B1 (en) | Martensitic stainless steel alloy | |
| WO1993024671A1 (en) | Steel for ball and roller bearings | |
| CN111015019B (en) | 00Cr20Mo16 welding wire and production process thereof | |
| CN102862029A (en) | Valve, and welding method of valve body | |
| CN110318004A (en) | The production technology of solenoid valve alloy material and static iron core | |
| CN110318009A (en) | The solenoid valve alloy material of easy cold-heading | |
| CN111690876A (en) | High-strength wire rod for bolt and production method thereof | |
| CN101597715B (en) | Iron-based high-temperature alloy material for guide roller and preparation method thereof | |
| CN110819782A (en) | Forging method of high-temperature-resistant ring piece for steam turbine | |
| JP2007314837A (en) | Age hardening type ferritic stainless steel sheet and age-treated steel material using the same | |
| CN103014514A (en) | Novel high-chromium ferritic heat-resistant steel and martensite lath refining method | |
| CN107779744B (en) | A kind of bainite type X100 grades of seamless line pipes and its manufacturing method | |
| CN108754347A (en) | The manufacturing process of petrochemical equipment Anti-corrosion flange | |
| CN108411220A (en) | High vanadium abrasion-resistant stee of high-carbon and preparation method thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |