CN101829694A

CN101829694A - Production method of TC4 drawing pipes

Info

Publication number: CN101829694A
Application number: CN 201010185743
Authority: CN
Inventors: 刘玉涛; 阎东辉; 鞠大文; 张树军; 吴德江
Original assignee: SHENYANG HESHITAI GENERAL TITANIUM INDUSTRY Co Ltd
Current assignee: SHENYANG HESHITAI GENERAL TITANIUM INDUSTRY Co Ltd
Priority date: 2010-05-28
Filing date: 2010-05-28
Publication date: 2010-09-15
Anticipated expiration: 2030-05-28
Also published as: CN101829694B

Abstract

The invention relates to a production method of TC4 drawing pipes, comprising the following steps of: taking the thin end of a pipe blank to penetrate through an inlet of a lubricating mould of a double-chain straight-pulling bed so that the pipe blank enters a drawing pipe mould, wherein the thin end of the pipe blank extends out of the other end of the drawing pipe mould and then is clamped by pulling teeth of a trolley positioned on the double-chain straight-pulling bed; charging a lubricating agent from the tail part of the pipe blank when the pipe blank is clamped, and placing pull rod core heads into the pipe blank; respectively fixing the core heads of different specifications by a pull rod; placing the lubricating agent into the pipe blank at one end of the pull rod, taking the end with the core heads to penetrate through the pipe blank from the tail part of the pipe blank, and enabling the core heads to just reach machining points inside the drawing pipe mould; fixing the other end of the pull rod on a tail holder of the double-chain straight-pulling bed so that the trolley of the double-chain straight-pulling bed pulls the pipe blank to shorten diameter, and the pull rod core heads reduce the wall thickness of the pipe blank; and manufacturing the TC4 drawing pipes of various specifications through multiple pulling. The invention has simple process; and in addition, the produced TC4 drawing pipes have high quality and low production cost.

Description

A kind of production method of TC4 drawing pipes

Technical field

The present invention relates to a kind of production method of tubing, specifically relate to a kind of preparation method of TC4 drawing pipes.

Background technology

TC4 tubing extensively should be in titanium pump and pipeline network, and it is many to produce TC4 tubing operation at present, and precision is relatively poor, the cost height.

Summary of the invention

Purpose of the present invention provides a kind of production method of TC4 drawing pipes.

The technical scheme that adopts is:

A kind of production method of TC4 drawing pipes, be that the lubricated mould inlet of the thin head end of pipe from double-stranded vertical pulling bed penetrated, enter the trombone slide mould, the thin end of pipe stretches out from the trombone slide mould other end, bite with the stretching tooth of dolly on the double-stranded vertical pulling bed again, in on the pipe card, by the pipe afterbody lubricant of packing into, and the pull bar core print put into pipe, its method is: respectively the different size core print is fixed with pull bar, at pull bar one end, will be put into lubricant in the pipe, the belt carcass head end is penetrated pipe by the pipe afterbody, and making core print just in time reach processing stand in the trombone slide mould, the pull bar other end is fixed on the broaching machine tailstock, when the broaching machine dolly spurs the pipe undergauge like this, the pull bar core print reduces the pipe wall thickness, makes all size TC4 tubing through repeatedly stretching.

When the pipe external diameter is following to φ 12, utilize the core ball that moves about to subtract wall, method and pull bar core print subtract to be moulded identically, and just core print is fixed without pull bar, and specifically technological procedure is as follows:

1, poling base: TC4 optical wand one end is got out the dark aperture of φ 25 * 100mm, fill out graphitic lubricant in the aperture, sealing utilizes chamber type electric resistance furnace to be warmed to 950～980 ℃, is incubated 1 hour, utilizes the Mannesmann piercing machine to wear into pipe then.

2, with head rolling machine pipe one end is rolled into the long thin head of 200mm, sting material with the stretching tooth on the standby stretching-machine.

3 heating of pipe blank: utilize main frequency furnace and resistance-heated furnace heating pipe, 800～850 ℃ of heating-up temperatures.

4 material loadings: the pipe that heats in the stove is inserted by broaching machine lubrication groove inlet, enter in the trombone slide mould, the pipe microcephaly stretches out from the pipe drawing mold other end, is blocked by the stretching tooth on the broaching machine dolly again.

5 cored heads: core print is fixedlyed connected with mandrel with pull bar one end, after pipe is packed mould into, the first end of belt carcass is together penetrated by the pipe afterbody together with lubricant, adjust pull bar length, make core print just arrive the place, work zone of trombone slide mould, the pull bar end is fixed on the broaching machine tailstock.

6 stretch: will lubricate and fill up lubricant in the mould, the starting broaching machine is that dolly drive pipe is at the uniform velocity pulled out pipe in the trombone slide mould, be that pipe is when passing through the stretching die undergauge, reach the purpose that reduces wall thickness, utilize the trombone slide mould of different size and the core print that matches, drawing goes out the TC4 tubing of different size.

7 tubules utilize floating core head to replace the pull bar core print when φ 12 is following, pull out the tubule that TC4 sets caliber, and drawing method is identical with said method.

Technology of the present invention is simple, the TC4 drawing pipe quality height of producing, and production cost is low.

Description of drawings

Fig. 1 is double-stranded vertical pulling bed schematic diagram.

Fig. 2 is L * C 60 Mannesmann piercing unit schematic diagrames.

Fig. 3 is the pointing machine schematic diagram.

Fig. 4 is a trombone slide mould schematic diagram.

Fig. 5 is a pull bar core print schematic diagram

Fig. 6 is the floating core head schematic diagram

The specific embodiment

A kind of production method of TC4 drawing pipes comprises following processing step:

1, gets the TC4 optical wand and be preparation pipe raw material;

2, poling base: TC4 optical wand one end is got out the dark aperture of Φ 25 * 100mm with two roller Mannesmann piercing mills, and in aperture, fill out graphitic lubricant, the sealing nose end utilizes chamber type electric resistance furnace to heat to 950-980 ℃, be incubated 1 hour, utilize the Mannesmann piercing machine to wear into pipe then;

3, with head rolling machine one end of above-mentioned pipe is rolled into the long thin head of 200mm, so that sting material with the stretching tooth on the stretching-machine;

4, heating of pipe blank; Utilize main frequency furnace or resistance-heated furnace heating pipe, be heated to 800-850 ℃;

5, material loading: the pipe after will heating is inserted by broaching machine lubrication groove inlet, enters in the trombone slide mould, and the pipe microcephaly stretches out from the pipe drawing mold other end, is blocked by the stretching tooth on the broaching machine dolly again;

6, cored head: core print is fixedlyed connected with mandrel with pull bar one end, after pipe is packed mould into, the first end of belt carcass is together penetrated by the pipe afterbody together with lubricant, adjust pull bar length, make core print just arrive the place, work zone of trombone slide mould, the pull bar end is fixed on the broaching machine tailstock;

7, stretch: will lubricate and dose lubricant in the mould, start broaching machine, broaching machine dolly pulling pipe is at the uniform velocity pulled out pipe in drawing die, pipe is when passing through the drawing die undergauge, reach the purpose that reduces wall thickness, utilize the trombone slide mould of different size and the core print that is complementary, drawing goes out the TC4 tubing of required specification; When drawing Φ 12 following path TC4 manage, utilize floating core head to replace the pull bar core print to carry out above-mentioned drawing, can obtain the TC4 tubing of required Φ 12 following specifications.

Claims

1. the production method of a TC4 drawing pipes is characterized in that comprising following processing step:

(1), gets the TC4 optical wand and be preparation pipe raw material;

(2), poling base: TC4 optical wand one end is got out the dark aperture of Φ 25 * 100mm with two roller Mannesmann piercing mills, and in aperture, fill out graphitic lubricant, the sealing nose end utilizes chamber type electric resistance furnace to heat to 950-980 ℃, be incubated 1 hour, utilize the Mannesmann piercing machine to wear into pipe then;

(3), with head rolling machine one end of above-mentioned pipe is rolled into the long thin head of 200mm, so that sting material with the stretching tooth on the stretching-machine;

(4), heating of pipe blank; Utilize main frequency furnace or resistance-heated furnace heating pipe, be heated to 800-850 ℃;

(5), material loading: the pipe after will heating is inserted by broaching machine lubrication groove inlet, enters in the trombone slide mould, and the pipe microcephaly stretches out from the pipe drawing mold other end, is blocked by the stretching tooth on the broaching machine dolly again;

(6), cored head: core print is fixedlyed connected with mandrel with pull bar one end, after pipe is packed mould into, the first end of belt carcass is together penetrated by the pipe afterbody together with lubricant, adjust pull bar length, make core print just arrive the place, work zone of trombone slide mould, the pull bar end is fixed on the broaching machine tailstock;

(7), stretch: will lubricate and dose lubricant in the mould, start broaching machine, broaching machine dolly pulling pipe is at the uniform velocity pulled out pipe in drawing die, pipe is when passing through the drawing die undergauge, reach the purpose that reduces wall thickness, utilize the trombone slide mould of different size and the core print that is complementary, drawing goes out the TC4 tubing of required specification; When drawing Φ 12 following path TC4 manage, utilize floating core head to replace the pull bar core print to carry out above-mentioned drawing, can obtain the TC4 tubing of required Φ 12 following specifications.