Bolt machining method

A processing method and bolt technology, which is applied to screws, threaded fasteners, connecting components, etc., can solve problems such as time-consuming, complicated manufacturing process steps, and cumbersome manufacturing.

Active Publication Date: 2018-11-13
浙江永欣联科信息科技股份有限公司
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  • Description
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Problems solved by technology

[0004] Although the manufacturing process disclosed in this patent is suitable for the manufacture of large quantities of bolts, the steps of the manufacturin

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Embodiment Construction

[0074] Below are specific embodiments of the present invention and in conjunction with accompanying drawing, technical scheme of the present invention is described further, but the present invention is not limited to these embodiments.

[0075] The processing method of this bolt comprises the following steps:

[0076] a. Material selection: Purchasing alloy steel material as coil material, the carbon content in the alloy steel material is 0.32-0.39%, the silicon content is 0.18-0.32%, the manganese content is 0.65-0.95%, and the phosphorus content is 0.02-0.03 %, the sulfur content is 0.01-0.02%, the chromium content is 0.74-1.13%, the copper content is 0.25-0.35, the boron content is 0.01-0.02%, the molybdenum content is 0.17-0.34%, and the rest is iron; In this embodiment, the alloy steel material is purchased as the coil material. The carbon content in the alloy steel material is 0.35%, the silicon content is 0.23%, the manganese content is 0.79%, the phosphorus content is ...

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Abstract

The invention provides a bolt machining method. The bolt machining method solves the technical problems that an existing manufacturing process is too complex in steps, a lot of time is required, and the manufacture is tedious. The bolt machining method comprises the following steps of a, selecting materials; b, annealing; c, sand blasting; d, drawing; e, shearing and blanking; f, turning; g, tapping; h, heat treating; i, cleaning and drying; j, spraying; and k, drying; and l, sintering. The bolt machining method has the advantages of being convenient to machine.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a processing method, in particular to a bolt processing method. Background technique [0002] Bolt is a general term for fasteners. It is a tool that uses the physical and mathematical principles of the oblique circular rotation and friction of the object to tighten the mechanism of the object step by step. The bolt processing process is: hot-rolled wire rod - (cold drawing) - spheroidizing (softening) annealing - mechanical descaling - pickling - cold drawing - cold forging forming - thread processing - heat treatment - inspection. [0003] After searching, for example, Chinese patent literature discloses a bolt manufacturing process [application number: 201410616999.2; publication number: CN 104439935A]. This bolt manufacturing process is characterized by: a. Feeding: hang the product to be processed into the furnace, cover the furnace tightly, and raise the temperature in the...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00F16B35/00
Inventor 顾卫平
Owner 浙江永欣联科信息科技股份有限公司
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