A kind of alloy steel for cutting parts and its manufacturing method
A manufacturing method and alloy steel technology, applied in the field of alloy steel manufacturing, can solve the problems of lowering product quality, non-wear-resistant cutting edge, increasing production cost, etc. The effect of toughness
Active Publication Date: 2016-08-17
HEFEI RUIHONG HEAVY MACHINERY
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AI Technical Summary
Problems solved by technology
[0002] At present, the processing of cemented carbide is usually processed in the compact state, and then cut with a tool. Due to the relatively high hardness of the cemented carbide particles during processing, the cutting edge of the tool will be non-wearable, easily damaged, and cut. Difficult phenomenon, and because it is a single-sided knife edge, the knife edge is also relatively sharp, frequent turning and clamping during processing will cause the product to have edge drop, chipping, cracking, and poor finish, which reduces product quality and improves production. cost
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0012] Embodiment 1: the alloy steel that is used for cutting parts, its chemical element composition and its mass percent are: carbon 0.42%, silicon 0.7%, manganese 0.45%, nickel 0.055%, molybdenum 0.0038%, cobalt 0.28%, vanadium 0.05% %, aluminum 0.75%, boron 0.035%, sulfur 0.025%, phosphorus 0.025%, and the balance is iron.
[0013] A method of manufacturing alloy steel for cutting parts, comprising the steps of:
[0014] (1) Put pig iron and low-carbon ferrochrome into a vacuum induction furnace for melting at a ratio of 1:4.5, then add scrap steel as a source of iron matrix; perform desulfurization and deoxidation; then add carbon powder, manganese powder, Silicon powder and aluminum powder are fully stirred and mixed evenly, and then nickel, molybdenum, cobalt, vanadium and boron alloy elements are added to the vacuum induction furnace. 3. Control the pressure in the induction furnace to 0.007Mpa, heat the temperature to 1250°C, hot-roll after melting, and make billets ...
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Abstract
The invention discloses an alloy steel for cutting parts and a manufacturing method thereof, which contains chemical element components and mass percentages: carbon 0.4-0.45%, silicon 0.67-0.72%, manganese 0.4-0.5%, nickel 0.05% ‑0.06%, molybdenum 0.0035‑0.004%, cobalt 0.2‑0.35%, vanadium 0.045‑0.055%, aluminum 0.7‑0.8%, boron 0.03‑0.04%, sulfur 0.023‑0.025%, phosphorus 0.02‑0.03%, and the balance is iron ; The alloy steel of the present invention has no high-temperature creep phenomenon in a high-temperature environment for a long time, and the high-temperature strength remains unchanged; it has strong high-temperature resistance, wear resistance, and oxidation resistance, and can be widely used in the field of cutting parts. The present invention adopts advanced The alloy formula, adding nickel, molybdenum and cobalt alloy elements, greatly enhances the toughness and delayed fracture strength of alloy steel.
Description
technical field [0001] The invention relates to an alloy steel and a manufacturing method thereof, in particular to a manufacturing method of an alloy steel used for cutting parts. Background technique [0002] At present, the processing of cemented carbide is usually processed in the compact state, and then cut with a tool. Due to the relatively high hardness of the cemented carbide particles during processing, the cutting edge of the tool will be non-wearable, easily damaged, and cut. Difficult phenomenon, and because it is a single-sided knife-edge, the knife-edge is relatively sharp, frequent turning and clamping during processing will cause the product to have edge drop, chipping, cracking, and poor finish, which reduces product quality and improves production. cost. Contents of the invention [0003] The object of the present invention is to provide a method of manufacturing alloy steel for cutting parts. [0004] The present invention adopts following technical sc...
Claims
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IPC IPC(8): C22C38/12C22C33/04C21D8/00
Inventor 费贤超
Owner HEFEI RUIHONG HEAVY MACHINERY