Heat treatment method of drilling tool steel
A heat treatment method and a technology for drill steel, which are applied in the field of production and manufacture of drill steel, and can solve problems such as unseen heat treatment process methods.
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[0019] Example 1:
[0020] (1) forging the blank, the blank will be placed in the heating furnace at a temperature of 500 ℃ -600 ℃ holding section, holding time ≥2H, then heated to 1200 ± 10 ℃ at / h heating rate of 100 deg.] C, incubated ≥4h ; baked fast forging, open forging temperature ≥1050 ℃, compression molding;
[0021] (2) pre-heat treatment, compression molding of normalizing the initial product, incubated 4h 840 ℃, furnace cooling to 300 ℃, cooled baked, and then tempering, the heating temperature of 480 deg.] C 8h baked heat insulation air-cooling, for the next step step of laying the foundation;
[0022] (3) roughing, finishing, the lathe roughing, the surface of the oxide layer off the car, and precise control of the size, shape finishing producing finished; drilling using drilling drill holes, removing burrs around the hole, allowing drill rod and solder products supporting the use of normal;
[0023] (4) heat treatment process, is heated to a temperature of 940 ± 10...
Example Embodiment
[0026] Example 2:
[0027] (1) forging the blank, the blank will be placed in the heating furnace at a temperature of 600 ℃ -700 ℃ holding section, holding time ≥2H, then heated to 1200 ± 10 ℃ at / h heating rate of 100 deg.] C, incubated ≥4h ; baked fast forging, open forging temperature ≥1050 ℃, compression molding;
[0028] (2) pre-heat treatment, compression molding of normalizing the initial product, incubated 4h 840 ℃, furnace cooling to 300 ℃, cooled baked, and then tempering, the heating temperature of 480 deg.] C 8h baked heat insulation air-cooling, for the next step step of laying the foundation;
[0029] (3) roughing, finishing, the lathe roughing, the surface of the oxide layer off the car, and precise control of the size, shape finishing producing finished; drilling using drilling drill holes, removing burrs around the hole, allowing drill rod and solder products supporting the use of normal;
[0030] (4) heat treatment process, is heated to a temperature of 950 ± 10...
Example Embodiment
[0033] Example 3:
[0034] (1) forging the blank, the blank will be placed in the heating furnace at a temperature of 700 ℃ -800 ℃ holding section, holding time ≥2H, then heated to 1200 ± 10 ℃ at / h heating rate of 100 deg.] C, incubated ≥4h ; baked fast forging, open forging temperature ≥1050 ℃, compression molding;
[0035] (2) pre-heat treatment, compression molding of normalizing the initial product, incubated 4h 840 ℃, furnace cooling to 300 ℃, cooled baked, and then tempering, the heating temperature of 480 deg.] C 8h baked heat insulation air-cooling, for the next step step of laying the foundation;
[0036] (3) roughing, finishing, the lathe roughing, the surface of the oxide layer off the car, and precise control of the size, shape finishing producing finished; drilling using drilling drill holes, removing burrs around the hole, allowing drill rod and solder products supporting the use of normal;
[0037] (4) heat treatment process, is heated to a temperature of 960 ± 10...
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