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| No.13789280
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Information Name: | SKD11 mold factory outlets |
Published: | 2015-06-17 |
Validity: | 365 |
Specifications: | |
Quantity: | 10000.00 |
Price Description: | |
Detailed Product Description: | High wear characteristics common cold work die steel; hardened resistance, less heat deformation. ?? Its advantages: (1) vacuum degassing refining, so the internal quality extremely clean (2) good machinability (3) Good hardenability, air cooling can be cured without fear of quenching crack (4) heat deformation very small, quenching deviation is extremely small, the most suitable for precision mold (5) Wear very best, most suitable for stainless steel or high-hard material blanking die (6) good toughness. The purpose of this steel is easy turning, and It should be made sharp knife, scissors, saw, cold or hot trimming mode, the drum edges, screws pattern, line die cutter, the impact of mold, round cylinder, the system of power transformers heart dies, cutting steel skin rolling knives, steel forming rollers, special molding roller, precision gauge, shape complexity of the cold tools, spindles, metallurgy, tin for mold, plastic mold, screw head molds. 1. Use of "quenching and tempering" state use under 2. "cold treatment quenching and tempering" state use (suitable for high precision and dimensional stability requirements) 3. "quenching and tempering + nitriding treatment" state use (suitable for high surface hardness) 4. Cryogenic treatment in order to obtain maximum hardness and dimensional stability, the mold immediately after the quenching of cryogenic -70 ° C to -80 ° C, for 3-4 hours, then return to the fire treatment, by tool or mold hardness cryogenic treatment than conventional heat treatment hardness 1-3HRC. Changes in the shape and size of a large complex parts, cryogenic treatment of the risk of cracking. 5. nitriding mold or workpiece nitriding, the surface layer has high hardness and corrosion resistance of certain hardened tissue. 6. In the nitriding process, surface hardness of about 525 ℃ 1250HV, nitridation time on the diffusion layer as shown in the following table. Nitriding time (hours) 203,060 nitriding depth mm 0.25 0.30 0.35 7. at 570 ℃ soft nitriding process, the workpiece surface hardness of about 950HV. Usually soft nitriding two hours, hardened layer depth can reach 10-20um. Grinding mold material or work in tempering state, grinding prone to grinding cracks. In order to prevent the occurrence of cracks should take a small amount of grinding feed grinding times, but it add a good water-cooled condition. Line cutting complex shapes or large size of the mold, the final trip when using wire cutting, often encounter cracking phenomenon. To prevent cracking, the proposed gas quenching and tempering treatment to reduce stress heat treatment, or pre-processing of the mold cavity embryos. Heat treatment Quenching: the first warm-up 700 ~ 750 ℃, and then heated to 1000 ~ 1050 ℃ in still air cooling, such as steel with a thickness of 6 inches or more in heating to 980 ~ 1030 ℃ in oil hardened better. Tempering: heating to 150 ~ 200 ℃, stay at this temperature and then cooled in still air. Hardness: HRC 61 or more. Annealing: heating to 800 ~ 850 ℃, at this temperature stays from 1 to 3 hours in the oven to cool gradually. Forged: 1050 ~ 950 ℃. |
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Copyright © GuangDong ICP No. 10089450, Daye victory Die Materials Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility
You are the 5126 visitor
Copyright © GuangDong ICP No. 10089450, Daye victory Die Materials Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility