CN104550595A

CN104550595A - Bush forging technology

Info

Publication number: CN104550595A
Application number: CN201510017491.5A
Authority: CN
Inventors: 刘正; 何丽霞; 陈云刚
Original assignee: Chongqing Yan Lian Heavy Duty Equipment Ltd Co
Current assignee: Chongqing Yan Lian Heavy Duty Equipment Ltd Co
Priority date: 2015-01-14
Filing date: 2015-01-14
Publication date: 2015-04-29

Abstract

The invention discloses a bush forging technology, including the following steps of: 1, chamfering one end of a steel ingot workblank, pressing feeder head at the other end to form pincers handles, cutting off excessive length, cutting water gap, and burring; 2, vertically placing the workblank into an upsetting plate part in a mold; 3, taking out the mold, punching a through hole by using a punch; 5, leveling the end face, penetrating a rod into an inner hole to press to be hexagonal and rounding, clearing angles, and enlarging the hole to the designed size; 6; leveling the end face, penetrating the rod again, pressing the small end to be hexagonal and drawing out, chamfering and rounding, leveling the end face, and slight enlarging the inner hole again to the designed size; 7, leveling and reshaping; 8, thermal processing after the infrared measured size is qualified. The bush forging technology has the advantages of being simple and convenient in technology, according to the bush forging technology, qualified product can be directly obtained by forging, the tissue fibers of the product is prevented from being damaged by turning processing, the service life is improved, and meanwhile, the processing amount is reduced, the material is saved, and the cost is lowered.

Description

A kind of lining Forging Technology

Technical field

The present invention relates to a kind of Forging Technology, particularly a kind of Forging Technology of lining.

Background technology

Existing lining Forging Technology, its key step is: first woollen is carried out jumping-up punching, forms the cylindrical shape of a hollow, then puts into that lathe carries out machining to outer wall is shaping.Do although it is so and can form product, but there is following deficiency in such technique: 1. processing capacity is large, causes process time longer; 2., when carrying out turnery processing on lathe, make waste of material amount large, waste material, improve forging cost; 3. when carrying out turnery processing, destroying the fibr tissue of forging, affecting forging quality, thus cause the service life of product shorter.

Summary of the invention

Object of the present invention is just to provide a kind of lining Forging Technology that can improve lining quality.

The object of the invention is by such technical scheme realize, a kind of lining Forging Technology, is characterized in that, described technique adopts following steps: chamfered edge is carried out in steel ingot blank one end by (1), and other end pressure-pad mouth does pincers handle, excision additional length, water dividing gap, deburring; (2) blank is stood to putting into mould jumping-up dish portion; (3) take out mould, rush through hole with drift; (5) flat end face, penetrates endoporus and press six sides, round as a ball, clear angle, and reaming is to design size with horse rod; (6) flat end face, then penetrate horse rod, by little side pressure six side pulling, chamfering, round as a ball, flat end face, gentlier expand endoporus to design size; (7) smooth, shaping; (8) heat treatment is handed over after red survey size qualification.

Further, between above-mentioned (1) step and (2) step, be also provided with jumping-up and pull out step: jumping-up, loads drain cap by blank, and jumping-up is to design size; Pulling, takes out blank and presses cubic chamfering to become from all directions, round as a ball to design size, wrong pincers handle.

In order to seam blemish, before step (1), steel ingot blank need be heated to 1180 DEG C ~ 1220 DEG C.

In order to make blank have plasticity, be convenient to forging, before described jumping-up pulling step, need by blank heating to 1230 DEG C ~ 1270 DEG C.

In order to control to stop the temperature of forging, before described step (2), need by blank heating to 1200 DEG C ~ 1240 DEG C.

Owing to have employed technique scheme, the present invention has the advantage of simple process, it is adopted can directly to obtain qualified product by the means of forging, prevent turnery processing to the destruction of product tissue fibers, improve service life, meanwhile, also reduce processing capacity, save material, reduce cost.

Accompanying drawing explanation

Accompanying drawing of the present invention is described as follows:

Fig. 1 is bush structure schematic diagram of the present invention.

Detailed description of the invention

Be described in further detail the specific embodiment of the present invention below in conjunction with accompanying drawing, but the present invention is not limited to these embodiments, any improvement or alternative on the present embodiment essence spirit, still belongs to the claims in the present invention scope required for protection.

Embodiment 1: as shown in Figure 1, a kind of lining Forging Technology, described technique adopts following steps: chamfered edge is carried out in steel ingot blank one end by (1), and other end pressure-pad mouth does pincers handle, excision additional length, water dividing gap, deburring; (2) blank is stood to putting into mould jumping-up dish portion; (3) take out mould, rush through hole with drift; (5) flat end face, penetrates endoporus and press six sides, round as a ball, clear angle, and reaming is to design size with horse rod; (6) flat end face, then penetrate horse rod, by little side pressure six side pulling, chamfering, round as a ball, flat end face, gentlier expand endoporus to design size; (7) smooth, shaping; (8) heat treatment is handed over after red survey size qualification.

Due in above-mentioned technique, do not adopt turnery processing, the fibr tissue of product can be made to be destroyed, ensure that the quality of product, extend the service life of product.

Wherein, between above-mentioned (1) step and (2) step, be also provided with jumping-up and pull out step: jumping-up, loads drain cap by blank, and jumping-up is to design size; Pulling, takes out blank and presses cubic chamfering to become from all directions, round as a ball to design size, wrong pincers handle.Pulled out by jumping-up, can increase deflection, improve the internal soundness of blank, the column crystal of broken blank, crystal grain thinning, makes metal densification high, makes the internal flaw of product obtain seam, improves the quality of product.

Further, before step (1), steel ingot blank need be heated to 1180 DEG C ~ 1220 DEG C.Steel ingot blank is heated between this temperature, can the defect on seam surface, make the chemical composition of metal evenly.

Further, before described jumping-up pulling step, need by blank heating to 1230 DEG C ~ 1270 DEG C.Between blank heating to this temperature, the state that the plasticity of blank can be made to reach best, is convenient to subsequent handling and carries out shaping to it.

Wherein, before described step (2), need by blank heating to 1200 DEG C ~ 1240 DEG C.Do like this and can control to stop forging and make temperature, insulating product interior tissue.

Claims

1. a lining Forging Technology, is characterized in that, described technique adopts following steps: chamfered edge is carried out in steel ingot blank one end by (1), and other end pressure-pad mouth does pincers handle, excision additional length, water dividing gap, deburring; (2) blank is stood to putting into mould jumping-up dish portion; (3) take out mould, rush through hole with drift; (5) flat end face, penetrates endoporus and press six sides, round as a ball, clear angle, and reaming is to design size with horse rod; (6) flat end face, then penetrate horse rod, by little side pressure six side pulling, chamfering, round as a ball, flat end face, gentlier expand endoporus to design size; (7) smooth, shaping; (8) heat treatment is handed over after red survey size qualification.

2. lining Forging Technology as claimed in claim 1, is characterized in that, be also provided with jumping-up and pull out step: jumping-up, loads drain cap by blank, and jumping-up is to design size between above-mentioned (1) step and (2) step; Pulling, takes out blank and presses cubic chamfering to become from all directions, round as a ball to design size, wrong pincers handle.

3. lining Forging Technology as claimed in claim 1, is characterized in that: before step (1), steel ingot blank need be heated to 1180 DEG C ~ 1220 DEG C.

4. lining Forging Technology as claimed in claim 2, is characterized in that: before described jumping-up pulling step, need by blank heating to 1230 DEG C ~ 1270 DEG C.

5. lining Forging Technology as claimed in claim 1, is characterized in that: before described step (2), need by blank heating to 1200 DEG C ~ 1240 DEG C.