WO2012083549A1 - 一种模具钢 - Google Patents
一种模具钢 Download PDFInfo
- Publication number
- WO2012083549A1 WO2012083549A1 PCT/CN2010/080203 CN2010080203W WO2012083549A1 WO 2012083549 A1 WO2012083549 A1 WO 2012083549A1 CN 2010080203 W CN2010080203 W CN 2010080203W WO 2012083549 A1 WO2012083549 A1 WO 2012083549A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- content
- mass fraction
- forging
- mold
- steel
- Prior art date
Links
Classifications
-
- 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
- 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
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
-
- 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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- 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
Definitions
- the invention belongs to the field of steel material manufacturing, and particularly relates to a mold steel. Background technique
- Mold manufacturing technology covering advanced mold materials and heat treatment processes is the foundation and core of manufacturing modernization.
- the development level of mold technology and its industrialization is an important indicator to measure the level of manufacturing in a country, and is an important factor in promoting the development of advanced net forming technology.
- Supporting technology, especially for cold stamping dies represented by automobile covers and high-speed progressive dies, and precision complex long-life dies for near-net forming, the amount of mold materials used are 28% and 50%, respectively.
- the invention provides a mold steel, wherein: the mass fraction of C is 0.30% - 0.40%, the mass fraction of Cr is 3.0-10.00%, the mass fraction of N content is 0% - 0.15%, and the mass fraction of Mn is 0.50 - 1.00 %, the mass fraction of Si is 0.30-1.00%, the mass fraction of Mo is 1.00_2.40%, and the mass fraction of V content is 0.5% _ 1.00%, ⁇ .030%, S ⁇ O.030%, The amount is Fe and inevitable impurities.
- the content of the N element is preferably 0.04-0.06%, the Cr content is 3.00%, the Mo content is 1.9%, the Mn content is 0.70%, the Si content is 0.80%, and the V content is 0.94%.
- Ingot forging heating, initial forging temperature, deformation speed, final forging temperature, forging and annealing of the test piece, according to the current process of H13 steel.
- the forging ratio is chosen to be 5-6.
- Heat treatment quenching heat temperature 1060 ° C -1080 ° C; tempering temperature 550 ° C -600 ° C.
- Electroslag ingot ⁇ Solution treatment
- Normalizing treatment ⁇ Isotropic forging ⁇ Spheroidizing annealing - Ultrafine grain processing One machining One inspection and storage
- Figure 1 is a schematic diagram comparing the service life of various mold steels. Best practice
- Example 1 According to the proportioning ingredients in Table 1. Manufacturing method: Ingot forging heating system, initial forging temperature, deformation speed, final forging temperature, forging and annealing of the test piece, according to the current process of H13 steel. The forging ratio is chosen to be 5-6. Quenching heat treatment 1060 ° C -1080 ° C. Tempering temperature 550 ° C -600 ° C. Get the RX4 - RX9 product.
- Example 2 Hot forging die for fast forging machine: After the electric arc furnace smelting + refining outside the furnace to obtain the primary steel ingot, after two electroslag remelting, the super superior steel ingot is obtained, after annealing and forging, using a six-face forging process to control The forging ratio is such that the material isotropic performance is 0.85 or more, and after forging, spheroidizing annealing is performed to obtain a module. The module is subjected to roughing, quenching + tempering heat treatment, and then finishing
- the service life of the mold made of the new material is about twice that of the Chinese-made H13 steel.
- the distribution ratio is in accordance with RX4 in Table 1.
- Example 3 Aluminum alloy die-casting mold: After the electric arc furnace smelting + refining outside the furnace to obtain the primary steel ingot, and then re-melting by electroslag to obtain high-quality steel ingot, after forging and forging, using a six-face forging process to control the forging ratio to make the material direction The performance is above 0.8, and after spheroidizing, spheroidizing annealing is performed to obtain a module. After rough machining, the module is subjected to quenching and tempering heat treatment, and then refined to obtain a mold. New The service life of the mold made of materials is about 1.5 times that of China's H 13 steel. The distribution ratio is in accordance with RX8 in Table 1.
- Low-carbon does not contain nickel or cobalt, and a small amount of non-metallic element lanthanum is added at the same time to form a strengthening phase; it has unique advantages in technical and economic performance, and fully complies with the processability, usability, durability and economy. That is, the smelting process meets the economic purity index, the thermal processing process is easy, and the comprehensive performance at high temperature and toughness above 600 °C is superior to that of H13 and other hot work die materials, and the price is equivalent to H13.
- the new preparation process can select different material preparation process according to the actual working condition of the mold, and the S, P, N, H, and ⁇ "residual elements" indicators of the S and P grades are determined. 300ppm, isotropic >0.9, non-metallic inclusion size ⁇ 1 71 ⁇ , all reached the international advanced level. The specific results are shown in Table 2. Among them, D2 is a US product and H13 is a Chinese product.
- RX's new mold materials have a surface life of more than 8,000 times, which exceeds the service life of similar mold materials in Germany, and the production cost is only 50%-60% of the similar mold materials in Germany.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat Treatment Of Steel (AREA)
- Forging (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2010/080203 WO2012083549A1 (zh) | 2010-12-23 | 2010-12-23 | 一种模具钢 |
AT0900110U AT12365U1 (de) | 2010-12-23 | 2010-12-23 | Ein formstahl |
DE201021000038 DE212010000038U1 (de) | 2010-12-23 | 2010-12-23 | Ein Formstahl |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2010/080203 WO2012083549A1 (zh) | 2010-12-23 | 2010-12-23 | 一种模具钢 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012083549A1 true WO2012083549A1 (zh) | 2012-06-28 |
Family
ID=45403652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2010/080203 WO2012083549A1 (zh) | 2010-12-23 | 2010-12-23 | 一种模具钢 |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT12365U1 (zh) |
DE (1) | DE212010000038U1 (zh) |
WO (1) | WO2012083549A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111961985A (zh) * | 2020-08-19 | 2020-11-20 | 合肥工业大学 | 一种低成本且高温下具有高热导率的模具钢及其制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5084116A (en) * | 1989-07-31 | 1992-01-28 | Nippon Seiko Kabushiki Kaisha | Rolling contact element steel and rolling bearing made thereof |
US20060225814A1 (en) * | 2005-04-12 | 2006-10-12 | Honda Motor Co., Ltd. | Crankshaft and method for manufacturing same |
CN101258257A (zh) * | 2005-09-09 | 2008-09-03 | 新日本制铁株式会社 | 使用中的硬度变化小的高韧性耐磨耗钢及其制造方法 |
CN101921958A (zh) * | 2009-06-16 | 2010-12-22 | 大同特殊钢株式会社 | 热加工工具钢以及使用其制得的钢制品 |
-
2010
- 2010-12-23 AT AT0900110U patent/AT12365U1/de not_active IP Right Cessation
- 2010-12-23 WO PCT/CN2010/080203 patent/WO2012083549A1/zh active Application Filing
- 2010-12-23 DE DE201021000038 patent/DE212010000038U1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5084116A (en) * | 1989-07-31 | 1992-01-28 | Nippon Seiko Kabushiki Kaisha | Rolling contact element steel and rolling bearing made thereof |
US20060225814A1 (en) * | 2005-04-12 | 2006-10-12 | Honda Motor Co., Ltd. | Crankshaft and method for manufacturing same |
CN101258257A (zh) * | 2005-09-09 | 2008-09-03 | 新日本制铁株式会社 | 使用中的硬度变化小的高韧性耐磨耗钢及其制造方法 |
CN101921958A (zh) * | 2009-06-16 | 2010-12-22 | 大同特殊钢株式会社 | 热加工工具钢以及使用其制得的钢制品 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111961985A (zh) * | 2020-08-19 | 2020-11-20 | 合肥工业大学 | 一种低成本且高温下具有高热导率的模具钢及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
DE212010000038U1 (de) | 2011-11-28 |
AT12365U1 (de) | 2012-04-15 |
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