Novel technique of tungsten-molybdenum wire drawing and wire drawing device thereof

Abstract

The invention relates to a novel technique of tungsten-molybdenum wire drawing and a wire drawing device thereof, wherein the novel technique of tungsten-molybdenum wire drawing adjusts the speed of the main-driving ceramic cone pulley through stepless speed adjustment; the flame temperature of each flame heating pipe on the temperature adjustable main heating stove is designed into the structurewhich can be adjusted alone; the tungsten-molybdenum wire drawing device comprises a speed adjustment converter, a driving motor, a cycloidal reducer, a supply wheel, a driving chain wheel, a take-upwheel, a ceramic cone pulley, an automatic temperature controlling mould frame, a temperature adjustable main heating stove, a graphite milk groove, and a rear driving cone pulley. The invention has the advantage of high production efficiency, short cycle, automatic temperature control and heating of the mould, stepless adjustment of driving linear velocity, no need of repeated repair of wire drawing cone pulley and stable product quality.

Description

technical field [0001] The invention relates to a new tungsten-molybdenum wire drawing process, and also relates to special wire drawing equipment for the wire drawing process. Background technique [0002] The tungsten-molybdenum wire drawing machine is a special equipment for producing tungsten wire and molybdenum wire. Due to its unreasonable structure, the existing tungsten-molybdenum wire drawing machine (five molds) has many shortcomings and deficiencies, which are specifically manifested in: [0003] 1. The original wire drawing machine can only draw five molds at most in each drawing process, and the production efficiency is low; drawing 92mg / 200mm semi-finished products requires two trips to complete, and the first trip is drawn to 174.5mg / 200mm ( φ0.24), the second process is 92mg / 200mm (φ0.175), and the production cycle is long. [0004] 2. The mold heating of the wire drawing machine is completed by heating the mold frame with fire. The actual temperature of the...

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Problems solved by technology

[0003] 1. The original wire drawing machine can only draw five molds at most in each drawing process, and the production efficiency is low; drawing 92mg / 200mm semi-finished products requires two trips to complete, and the first trip is drawn to 174.5mg / 200mm ( φ0.24), the second process 92mg / 200mm (φ0.175), long production cycle

[0004] 2. The mold heating of the wire drawing machine is completed by heating the mold frame with fire. The actual temperature of the mold and the size of the fire are completely adjusted by the operator with the naked eye, and each person's visual temperature error is very large, which will directly affect the quality of the product. quality

[0005] 3. The driving line speed of the five-die wire drawing machine cannot be adjusted, and it is fixed at 45m / min, which cannot guarantee the process requirements for drawing products of various specifications, and is prone to uneven diameters, which affects the normal use of users, and the operator does not easy to operate

[0006] 4. The existing five-mode tungsten-molybdenum wire drawing machine adopts one temperature control due to uniform adjustment of the flame temperature of the heating furnace, so the error of temperature is large, so the energy consumption is large, the production efficiency is low, the production cost is high, and the quality of the product cannot be guaranteed.

[0007] 5. The front-drive wire drawing cone used in the existing tungsten-molybdenum wire drawing equipment is made of steel, which wears quickly. A new steel cone can only be used for one month, and the worn cone needs to be repaired. It can continue to be used after replacement. A new steel tower wheel can only be repaired 6-7 times at most before it cannot be repaired and is scrapped. This will bring a lot of trouble to the operator, increase the cost of processing, and cause waste of parts. At the same time, because the steel tower pulley is easy to wear and grooves appear, it also brings a certain degree of damage to the surface of the processed tungsten and molybdenum wire, thus affecting the quality of the product and affecting normal production.

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