Extrusion needle for aluminum alloy seamless tube extruder and on-line heating method of extrusion needle
A technology of extrusion needle and extruder, which is applied in the field of hot extrusion manufacturing, can solve problems such as difficulty in preheating extrusion needle, and achieve the effects of reducing non-extrusion time, increasing temperature and improving production efficiency
Pending Publication Date: 2022-04-12
山东兖矿轻合金有限公司
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Problems solved by technology
[0004] Aiming at the problem of difficult preheating of extrusion needles in the prior art, the present invention provides an extrusion needle for an aluminum alloy seamless pipe extrusion machine and an online heating method thereof, so that the temperature of the extrusion needle can be rapidly raised to the temperature required for production, reducing Non-squeezing time for increased productivity
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[0025] An extrusion needle for an aluminum alloy seamless pipe extrusion machine, comprising: an extrusion needle 1, a heating rod fixing device 2, a heating rod 3, a quick-plug connection 4, a thermocouple 5 and a control cabinet 6, the extrusion needle 1 The heating system installation hole is processed on the top, and the length of the installation hole is 60mm, which is used to install the heating rod fixing device 2. The heating rod 3 includes three heating single rods, and the connection adopts a quick-plug connection 4 to improve the efficiency of cable insertion and removal , the diameter of a single heating rod is 30mm, the power of a single heating rod is 1KW-3KW, and the total heating power is controlled within 10KW. A temperature measuring hole is processed on the extrusion needle 1 to install the thermocouple 5, and the lead wire is made of 500℃ resistant The above high-temperature flexible wires are directly connected to the control cabinet 6.
[0026] The on-lin...
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Abstract
The invention discloses an extrusion needle for an aluminum alloy seamless tube extruder and an online heating method of the extrusion needle, relates to the technical field of hot extrusion manufacturing, solves the problem that the extrusion needle is difficult to preheat, and comprises an extrusion needle, a heating rod fixing device, a heating rod, a temperature measuring device and a control cabinet, the heating rod is arranged in the heating mounting hole through the heating rod fixing device, the heating rod is connected with the control cabinet through a circuit, a temperature measuring mounting hole is formed in a needle head of the extrusion needle, the temperature measuring device is arranged in the temperature measuring mounting hole, and a lead of the temperature measuring device is connected with the control cabinet; through on-line heating, the temperature of the extrusion needle is increased; the temperature is controlled through the control cabinet, and the temperature of the extrusion needle is accurately controlled; the extrusion needles with different diameters adopt different heating powers; when the extruding machine is used for producing a seamless tube, the extruding needle is directly heated through the heating device, so that the extruding needle is rapidly heated to the temperature required by production, the non-extruding time is shortened, and the production efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of hot extrusion manufacturing, in particular to an extrusion needle for an aluminum alloy seamless pipe extrusion machine and an online heating method thereof. Background technique [0002] The seamless pipe is a pipe fitting that is extruded from a whole circular metal perforation and has no welds on the surface. The extruder is a kind of equipment that uses the principle of metal plastic forming to heat the metal to a certain temperature for pressure processing. The extrusion needle is an extrusion tool that pierces the ingot and determines the size of the inner hole of the hollow extrusion product during extrusion. [0003] The extrusion needle needs to be heated in the extrusion needle heating furnace before installation, but after the extrusion needle is installed on the extrusion machine, the temperature of the extrusion needle is basically between 200-250°C, which is 350-370°C from the production re...
Claims
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IPC IPC(8): B21C26/00B21C31/00B21C23/08
Inventor 李建华张新峰王玉刚王明坤苏伟刘坤董瑞峰刘博王聪曹帅刘凯王家旺郭利罗威刘宁刘伟杨栋张磊李宝文
Owner 山东兖矿轻合金有限公司