Thick-wall copper pipe production process

A manufacturing process and copper tube technology, applied in the field of thick-walled copper tube manufacturing process, can solve problems such as slotting, scrapping, and cracking of copper ingots, and achieve the effects of good quality, slow cooling, and no cracking

A manufacturing process and copper tube technology, applied in the field of thick-walled copper tube manufacturing process, can solve problems such as slotting, scrapping, and cracking of copper ingots, and achieve the effects of good quality, slow cooling, and no cracking

CN103567252AActive Publication Date: 2014-02-12常州市武进长虹结晶器有限公司
7 Cites 2 Cited by

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] A kind of manufacturing process of thick-walled copper pipe of the present embodiment, comprises the following steps:

[0012] ①Forging: the furnace temperature is raised to 850~900℃, the copper ingot is forged into a copper rod, and then kept for 6~7 hours;

[0013] ②Reverse extrusion: The copper ingot is limited by the outer mold, and the copper rod is reverse-extruded through the inner mold to form a copper tube with a bottom, and then the extruded copper tube is cooled to room temperature;

[0014] ③Cold extrusion: stretch the copper pipe to the required size through cold extrusion, and keep it warm for 3~4 hours. Cold extrusion adopts the process of multiple cold extrusion, specifically: every time the wall thickness of the copper tube is reduced by 5-6mm, temper once, and the tempering temperature is 600-650°C until the wall thickness of the copper tube meets the requirements; The required inner and outer diameters are calculated according to the requirements for...

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 present invention discloses a thick-wall copper pipe production process, which comprises: 1, forging and stamping, wherein a furnace temperature is increased to 850-900 DEG C, a cooper ingot is forged and stamped, and thermal insulation is performed for 2-7 h; 2, reverse extrusion, wherein the copper ingot is subjected to position limitation by using an outer mold, the cooper rod is subjected to reverse extrusion through an inner mold to form a cooper pipe having the bottom, and the extruded cooper pipe is cooled to achieve a room temperature; and 3, cold extrusion, wherein the cooper pipe is subjected to cold extrusion to stretch so as to achieve the required size, and thermal insulation is performed for 3-4 h. According to the present invention, the manufacturing process is clear, the temperature and other parameters are reasonably controlled so as to produce the thick-wall cooper pipe meeting requirements by using the simple and conventional production process, and the quality is good.

Description

technical field [0001] The invention relates to a manufacturing process of a crystallizer copper tube, in particular to a manufacturing process of a thick-walled copper tube. Background technique [0002] The continuous casting process is the process of injecting molten steel into the crystallizer to continuously obtain casting slabs. It is an intermediate link connecting steelmaking and steel rolling, and is an important part of steelmaking production. The mold is an important part of the continuous casting machine in the smelter, and the copper tube of the mold is an important part of the mold. Since the high-temperature molten steel flows directly through the mold copper tube, in order to stabilize the continuous casting process and ensure the safety of equipment and operators, the mold copper tube is required to have good high temperature resistance, wear resistance and corrosion resistance. In order to improve the cooling effect of the crystallizer, it can be considere...

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
12 Feb 2014
Publication
CN103567252A
IPC
B21C37/06; B21C23/02
Inventors
吴纯辉