Manufacturing process of high-speed steel for taps and taps
A manufacturing process, high-speed steel technology, applied in the direction of manufacturing tools, improving process efficiency, improving energy efficiency, etc., can solve the problems of unguaranteed service life, carbide aggregation and growth, and low grain bonding strength to achieve tool life Improvement, uniform composition and excellent performance
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[0019] In order to make the content of the present invention more clearly understood, the present invention will be further described in detail below based on specific embodiments.
[0020] A special high-speed steel manufacturing process for taps, comprising the following steps,
[0021] Step S1, prepare raw materials according to the following weight percentages, C: 1.27%-1.35%, Mn: 0.5%-0.6%, Mo: 7.3%-8%, Cr: 3.5%-4%, W: 3%-3.5%, V: 2.8%-3.1%, the rest is Fe;
[0022] Step S2, put the mixed raw materials into a vacuum induction furnace, keep the vacuum degree in the vacuum induction furnace less than or equal to 2Pa, heat and melt the raw materials into a melt, and mix the melt in the vacuum induction furnace evenly, and then put The melt is cast into a steel ingot in a protective atmosphere, and the overall time is about 2.5 hours;
[0023] Step S3, the steel ingot formed in step S2 is treated by atmosphere-protected electroslag remelting, the temperature range of the mo...
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