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Car engine connecting rod bimetal investment casting process

A technology of automobile engine and investment casting, which is used in metal processing equipment, connecting rods, manufacturing tools, etc. to achieve the effects of high strength, improved castability, and higher qualification rate

Inactive Publication Date: 2020-08-07
全椒康盛机电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a bimetallic investment casting process for automobile engine connecting rods, so as to solve the existing technical defects and unreachable technical requirements

Method used

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  • Car engine connecting rod bimetal investment casting process
  • Car engine connecting rod bimetal investment casting process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] The concrete steps of the automobile engine connecting rod bimetal investment casting process of the present invention are as follows:

[0023] S1: Combining the cavity 3 of the connecting rod body and the cavity 1 of the cover body into a bimetallic investment casting module 7;

[0024] S2: form the split groove 8 in the bimetal investment casting module at the contact part of the connecting rod body cavity 3 and the cover body cavity 4;

[0025] S3: The two ends of the separation plate 13 and the separation plate 2 14 should be locked in the groove 1 9, the groove 2 10, the groove 3 11 and the groove 4 12 in the split groove 8 by sliding;

[0026] S4: injecting the splitting material of the connecting rod body into the splitting groove 8 for molding;

[0027] S5: eject the separation plate one 13 from the first groove 9 and the third groove 11

[0028] S6: injecting the connecting rod body molding material into the connecting rod body cavity 3 for molding;

[0029]...

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Abstract

The invention discloses a car engine connecting rod bimetal investment casting process. The car engine connecting rod bimetal investment casting process comprises the following steps that firstly, a connecting rod body mold cavity and a cover body mold cavity are combined into a bimetal investment casting module; secondly, a contact part of the connecting rod body mold cavity and the cover body mold cavity forms a split groove in the bimetal investment casting module; thirdly, a connecting rod body split material is injected into the split groove to be formed; fourthly, a connecting rod body forming material is injected into the connecting rod body mold cavity to be formed; fifthly, the formed connecting rod body split material in the split groove is ejected out; sixthly, a cover body split material is injected into the split groove; seventhly, a cover body forming material is injected into the cover body mold cavity to be formed; eighthly, a formed cover body split material in the split groove is ejected out; and ninthly, inner formed parts of the connecting rod body mold cavity and the cover body mold cavity are ejected out. According to the car engine connecting rod bimetal investment casting process, the quality of a single part can be improved, a connecting rod body and a cover body after forming are combined to obtain a flat interface, and the interface combination strength is high.

Description

technical field [0001] The invention relates to the technical field of automobile engine connecting rods, in particular to a bimetal investment casting process for automobile engine connecting rods. Background technique [0002] The connecting rod of the automobile engine connects the piston and the crankshaft, and transmits the force acting on the piston to the crankshaft, converting the reciprocating motion of the piston into the rotational motion of the crankshaft. The connecting rod group is composed of connecting rod body, connecting rod big head cover, connecting rod small end bushing, connecting rod big end bearing bush and connecting rod bolts (or screws). The connecting rod group is subjected to the gas force from the piston pin, its own swing and the reciprocating inertial force of the piston group. The magnitude and direction of these forces change periodically. Therefore, the connecting rod is subjected to alternating loads such as compression and tension. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/22B22C9/04F16C7/02
CPCB22C9/04B22C9/22F16C7/023F16C2220/06
Inventor 王广洲
Owner 全椒康盛机电有限公司
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