TH7256B - Immediately hardened steel - Google Patents

Abstract

The purpose of fabrication is to provide the steel used. It works well with mold production. For plastics molds, this steel in the temperel condition has a minimum bond strength of 1050 N/nm2 and a hardness of at least 38 HRC with mechanical properties. That has been improved by the steel will be scrubbed. Easily polished while it is softened by No need to rely on heat to help at all. According to the purpose of this invention Provide steel of the type whose composition is specified in Claim 1.

Claims (9)

1.Immediately stabilized hard steel for mold production for plastics. Which contains carbon 0.06-0.2 silicon 0.15 - 0.8 manganese 1.4 - 3.6 sulfur 0.12 - 0.4 chromium 0 - 0.9 nickel 2.8 - 4.3 vanadium 0.03 - 0.15 copper 0.1 - 4.0 aluminum 0.1 - 4.0 aluminum + copper 0.9 - 4.1 Niobium 0.03 - 0.12 Zirconium 0.01 - 0.1 Calcium 0 - 0.01 Titanium 0.01 - 0.1 Molydenum 0 - 1.0 Tungsten 0 - 1.0 Mo + W / 2 0 - 1.5 Residual iron and dopant Pure In percent by weight 2. Immediately stabilized hardened steel as described in Clause 1: Carbon 0.08 - 0.18 Silicon 0.25 - 0.40 Manganese 1.6 - 2.8 Sulfur 0.15 - 0.3 Chromium 0 - 0.5 Nickel 3.3 - 3.7 Vana. Diem 0.03 - 0.1 Copper 0.3 - 3.0 Aluminum 0.1 - 2.8 Aluminum + Copper 1.0 - 3.1 Niobium 0.04 - 0.06 Zirconium 0.02 - 0.06 Titanium 0.02 - 0.06 Calcium 0 - 0.008 Molyzium 0 - 0.8 Tungsten 0 - 0.8 Mo + W / 2 0 - 1.0 residual iron and purity doped mixture In percent by weight 3. Immediate-hardening steel as requested in claim 1 consisting of carbon 0.10 - 0.15 silicon 0.25 - 0.35 manganese 1.8 - 2.2 sulfur 0.15 - 0.25 chromium 0 - 0.5 nickel 3.4 - 3.6 vanadia M 0.05 - 0.1 Copper 0.4 - 2.4 Aluminum 0.1 - 2.1 Aluminum + Copper 1.5 - 2.5 Niobium 0.05 - 0.08 Zirconium 0.03 - 0.05 Titanium 0.3 - 0.05 Calcium 0.002 - 0.006 Molyzium 0.08 Tungsten 0.08 Mo + W / 2 0 - 1.0 residual iron and production contaminants In percent by weight 4. Immediately stabilized hardened steel for mold production for plastics. Which contains sulfur 0.12 - 0.4, zirconium 0.01 - 0.1, titanium 0.01 - 0.1, calcium 0.001 - 0.01, the remainder, iron and production contaminants. In percent by weight 5. Molds for forming plastic products. Where this mold is made of alloy of steel Which contains carbon 0.06 - 0.2 silicon 0.15 - 0.8 manganese 1.4 - 3.6 sulfur 0.12 - 0.4 chromium 0 - 0.9 nickel 2.8 - 0.15 vanadium 0.03 - 0.15 copper 0.1 - 4.0 aluminum 0.1 - 4.0 aluminum + copper 0.9 - 4.1 Niobium 0.03 - 0.12 Zirconium 0.01 - 0.1 Calcium 0 - 0.01 Titanium 0.01 - 0.1 Molyzium 0 - 1.0 Tungsten 0 - 1.0 Mo + W / 2 0 - 1.5 Residual iron and contaminants in Production In percent by weight 6. Molds for forming plastic products Where this mold is made of alloy of steel Which contains carbon 0.08 - 0.18 silicon 0.25 - 0.40 manganese 1.6 - 2.8 sulfur 0.15 - 0.3 chromium 0 - 0.5 nickel 3.3 - 3.7 vanadium 0.05 - 0.1 copper 0.3 - 3.0 aluminum 0.1 - 2.8 aluminum + copper 1.0 - 3.1 Niobium 0.04 - 0.06 Zirconium 0.02 - 0.06 Titanium 0.01 - 0.1 Calcium 0 - 0.08 Molybdenum 0 - 0.8 Tungsten 0 - 0.8 Mo + W / 2 0 - 1.0 Residual iron and contaminants in Production In percent by weight 7. Molds for forming plastic products Where this mold is made of alloy of steel Which contains carbon 0.10 - 0.15 silicon 0.25 - 0.35 manganese 1.8 - 2.2 sulfur 0.15 - 0.25 chromium 0 - 0.5 nickel 3.4 - 3.6 vanadium 0.05 - 0.1 copper 0.1 - 2.4 aluminum 0.1 - 2.1 aluminum + copper 1.5 - 2.5 Niobium 0.05 - 0.08 Zirconium 0.03 - 0.05 Titanium 0.03 - 0.05 Calcium 0.002 - 0.006 Molydenum 0 - 0.8 Tungsten 0 - 0.08 Mo + W / 2 0 - 1.0 Residual iron and contaminants in Production In percent by weight 8. Hardened steel immediately stabilizes as requested in claim 4, where the elements contain sulfur 0.15 - 0.30 zirconium 0.02 - 0.06 titanium 0.02 - 0.06 calcium 0.001 - 0.01 the rest iron and contaminants. In production In percent by weight 9. Hardened steel instantly stabilizes as requested in claim 4, where the elements contain sulfur 0.15 - 0.30 zirconium 0.01 - 0.1 0.05 - 0.08 titanium 0.01 - 0.1 0.05 - 0.08 calcium 0.001 - 0.01 the rest. Iron and production contaminants In percent by weight