Improvement method of carburized part of screw

A carburizing and screw technology, applied in the field of fastener preparation, can solve the problems of reducing production efficiency, increasing production cost, lengthening production process cycle, etc., and achieving the effect of reducing production efficiency, increasing the quantity of graphite, and reducing production cost

Pending Publication Date: 2021-06-08
西安合力汽车配件有限公司
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides an improvement method for screw carburized parts, which solves the problems in the prior art that heat treatment is used to eliminate carburized parts in screws, which leads to a longer production process cycle, increased production costs, and greatly reduces production efficiency. , thus realizing the efficient production of screws and reducing the production cost of screws

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Improvement method of carburized part of screw

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer " and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an improvement method for a carburized part of a screw, relates to the technical field of fastener preparation, and solves the problems that the production process period is prolonged, the production cost is increased and the production benefit is greatly reduced due to the fact that the carburized part in the screw is eliminated by adopting a heat treatment mode in the prior art. The improvement method for the carburized part of the screw comprises the following steps of melting raw materials into molten iron at 1500-1570 DEG C, and pouring the molten iron into a spheroidizing ladle; adding bismuth into the spheroidizing ladle, and uniformly fusing the bismuth with the molten iron; pouring the fused molten iron into a cavity for smelting and pouring; and machining the poured casting. According to the method, the number of the carburized parts in the screw is effectively reduced, efficient production of the screw is achieved, and the production cost of the screw is reduced.

Description

technical field [0001] The present application relates to the technical field of fastener preparation, in particular to an improved method for screw carburized parts. Background technique [0002] Screws are a common type of fastener on the market. It is a type of fastener consisting of a head and a screw. [0003] Most of the existing screws adopt the overall metal structure. During the manufacturing process, when the molten iron is transformed into a solid state, due to the fast cooling rate, carburization is easy to occur on the edges, corners, and thin walls of the casting. body, resulting in high hardness and brittleness of the workpiece, which is not conducive to processing and forming. [0004] At present, the elimination of carburized parts in cast iron or steel is mainly achieved through normalizing, spheroidizing annealing, drawing, high-temperature recrystallization annealing, but for the production of small fasteners such as screws, the heat treatment process wi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/08C21C1/10C22C37/04C22C37/10C21C7/00
CPCC22C33/08C22C37/04C22C37/10C21C1/105C21C7/0006
Inventor 刘少利叶少腾张义涛康健
Owner 西安合力汽车配件有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap