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A manufacturing process for manufacturing integral stainless steel oil rail forgings

A manufacturing process, stainless steel technology, applied in the manufacturing process field of manufacturing integral stainless steel oil rail forgings, can solve the problems of reduced reliability, thin-walled oil leakage, and the influence of oil rail performance without consideration, etc., to reduce manufacturing unloading , the effect of increasing the difficulty of manufacturing

Active Publication Date: 2022-01-11
JIANGSU LONGCHENG PREC FORGING CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The influence of the forging process on the service performance of the oil rail in the existing technical scheme has not been fully considered. The finished oil rail obtained according to the existing technological scheme is prone to the problem of uneven wall thickness, which will further lead to the thin-walled part of the oil rail in actual service. Oil leaks occur, reducing their reliability at high operating pressures

Method used

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  • A manufacturing process for manufacturing integral stainless steel oil rail forgings
  • A manufacturing process for manufacturing integral stainless steel oil rail forgings
  • A manufacturing process for manufacturing integral stainless steel oil rail forgings

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Embodiment

[0042] A stainless steel fuel rail forging of the present invention includes a main pipe part and a fuel injector seat part. The key point is to limit the straightness and position of the main pipe part. more than 1mm.

[0043] Such as Figure 8 As shown, a manufacturing process for manufacturing integral stainless steel oil rail forgings includes the following steps,

[0044] S1 blanking, S2 heating, S3 die forging, S4 trimming, S5 post-forging treatment, among which,

[0045] (1) The trimming correction compound mold increases the deformation compensation amount through the punch, and the compensation amount is ±0.3mm, so as to ensure that the straightness of the long axis is within 0.6mm, and the position degree is within 1mm.

[0046] Among them, the trimming correction compound die structure of stainless steel oil rail forgings includes:

[0047] upper mold assembly,

[0048] The upper mold assembly includes a discharge plate, a punch, a discharge elastic part and a d...

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Abstract

The invention relates to the field of die forging technology, especially a forging process for manufacturing integral stainless steel oil rail forgings. The invention relates to a stainless steel oil rail forging and its manufacturing process. The main technical problem to be solved is that the wall thickness of the oil rail product is different. Uniformity leads to the problem of oil leakage at the thin wall (or solves the problem of uneven wall thickness of the oil rail and the problem of oil leakage at the thin wall without reducing the existing manufacturing efficiency).

Description

technical field [0001] The invention relates to the technical field of die forging, in particular to a manufacturing process for manufacturing integral stainless steel oil rail forgings. Background technique [0002] As a key component of the engine, the integral forged stainless steel oil rail has relatively high requirements on the shape and dimensional accuracy of the product. According to the shape and characteristics of the product, the shape of the long-axis stainless steel oil rail is irregular. During the forging production process, the forging part is heated unevenly, which will lead to plastic deformation and elastic deformation of the product. The amount of deformation will affect the supervisor of the product. 1- 1 straightness, injector seat 1-2 position degree and center distance and other dimensions, products such as figure 1 shown. [0003] In order to improve the reliability of the oil rail under high working pressure, Chinese patent CN107299295A discloses...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J5/02B21J5/00B21J13/02F16C29/00
CPCB21J5/02B21J5/002B21J13/02F16C29/00
Inventor 王浩叶景申文杰庄晓伟张亚东
Owner JIANGSU LONGCHENG PREC FORGING CO LTD
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