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Bearing ball at end of tungsten wire rope and forming process

A forming process and technology of tungsten wire rope, which is applied in the field of crystal growth equipment, can solve the problems of processing technical problems of bearing balls at the end of tungsten wire rope, and achieve the effects of easy mechanical extrusion and good plastic deformation performance.

Active Publication Date: 2011-02-16
宝鸡志普有色金属加工有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0008] The purpose of the present invention is to provide a bearing ball at the end of a tungsten wire rope and its forming method to solve the technical problem of processing the bearing ball at the end of a tungsten wire rope

Method used

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  • Bearing ball at end of tungsten wire rope and forming process
  • Bearing ball at end of tungsten wire rope and forming process

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Embodiment Construction

[0021] (1) in one comprising upper die 3 and lower die 4, and the spherical shape inner cavity 5 of the extruding die that is formed with spherical shape inner cavity 5 and tungsten wire rope channel 6 in the middle of upper die 3 and lower die 4 places suitable size Niobium or tantalum or alloy materials based on niobium or tantalum;

[0022] (2) Put the end of the tungsten wire rope 1 into the tungsten wire rope channel 6 of the extrusion die, combine the upper mold 3 and the lower mold 4 and then extrude through a press.

[0023] Extrusion die structure of the present invention such as figure 2 , 3 As shown, it is an extrusion die, which is completed according to the existing extrusion process by using general-purpose pressure equipment.

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Abstract

The invention relates to a bearing ball at the end of the tungsten wire rope, belonging to the technical field of crystal growth equipment, which is characterized in that metal niobium or tantalum or alloy material using the niobium and the tantalum as the substrate is adopted to form a bearing body like a ball. The forming process of the bearing ball at the end of the tungsten wire rope is characterized in that by the metal plastic deformation of the niobium or the tantalum or the alloy material using the niobium and the tantalum as the substrate, the niobium or the tantalum or the alloy material using the niobium and the tantalum as the substrate is extruded to be molded on the premise that elastic deformation is not produced. As the metal niobium or tantalum or the alloy material usingthe niobium and the tantalum as the substrate, which has high melting point, is used as the material of the bearing ball, the bearing ball can fully meet the requirement that the head of the bearing ball is not deformed if heated when the bearing ball works under 1500 DEG C in the single crystal furnace; good plastic deformation facilitates the bearing ball to be extruded to be molded without damaging the properties of the tungsten wire rope; and the binding force of the bearing body and the tungsten wire rope meets the tension requirement of lifting and pulling the single crystal silicon rod, so the service life is prolonged plural times than that of the wire rope.

Description

technical field [0001] The invention belongs to the technical field of crystal growth equipment, in particular to auxiliary facilities for the use of a "single crystal furnace". Background technique [0002] As the IC industry and the photovoltaic industry continue to demand high-purity raw material monocrystalline silicon, it has reached the standard of 9N semiconductor grade. Therefore, the main equipment in the preparation of monocrystalline silicon rods - single crystal furnace and furnace environment have also been raised. Strict specifications, technology and material lag of the pulling system for single crystal silicon rods in the furnace are highlighted. [0003] For a long time, steel wire ropes have been used in the lifting system of single crystal furnaces, but at present, in order to improve the purity and service life of single crystal silicon, and to implant "magnetic fields" into single crystal furnaces, traditional steel wire ropes cannot be used in magnetic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B15/30C30B15/32
Inventor 符志椿
Owner 宝鸡志普有色金属加工有限公司
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