Squeezing needle used for producing lubrication-free heat squeezing seamless pipe material

A seamless pipe and hot extrusion technology, applied in the field of extrusion needles, can solve the problems of uneven application of lubricating oil, oil spots on the inner surface of the pipe, and easy sticking of extrusion needles to metal, etc., to improve the quality of the inner surface and shorten the Production cycle, the effect of eliminating scratches

Inactive Publication Date: 2012-06-13
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of oil spots on the inner surface of the pipe caused by the uneven application of lubricating oil when the existing extrusion needle is in use, and the surface of the extrusion needle is easy to stick to metal, causing scratches on the inner surface of the pipe. Scratch problem, and then provide an extrusion needle for the production of non-lubricated hot extrusion seamless pipe

Method used

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  • Squeezing needle used for producing lubrication-free heat squeezing seamless pipe material
  • Squeezing needle used for producing lubrication-free heat squeezing seamless pipe material
  • Squeezing needle used for producing lubrication-free heat squeezing seamless pipe material

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specific Embodiment approach 1

[0007] Embodiment 1: Combining figure 1 and figure 2 Describing this embodiment, the extrusion needle for producing non-lubricated hot-extruded seamless pipes in this embodiment includes a needle core 1, a cemented carbide outer casing 2 and a screw 3, and the needle core 1 is arranged in the cemented carbide outer casing 2, The lower end of the needle core 1 is flush with the lower end of the cemented carbide casing 2 , and the needle core 1 is encapsulated in the cemented carbide casing 2 by screws 3 .

specific Embodiment approach 2

[0008] Specific implementation mode 2: Combining figure 1 and figure 2 The present embodiment will be described. The needle core 1 and the screw 3 of the present embodiment are made of H13 material. This arrangement increases the strength of the extrusion needle. Other components and connection relationships are the same as in the first embodiment.

specific Embodiment approach 3

[0009] Specific implementation three: combination figure 1 and figure 2 Describing this embodiment, the screw head of the screw 3 in this embodiment is integrally formed by a cylindrical portion 3-1 and a circular frustum portion 3-2 from top to bottom, the busbar of the frustum portion 3-2 and the frustum portion 3-2 The included angle α of the axes is 20°. This setting is easy to use. Other compositions and connection relationships are the same as in the first or second embodiment.

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Abstract

The invention relates to a squeezing needle used for producing a lubrication-free heat squeezing seamless pipe material, and relates to the squeezing needle used for producing the heat squeezing seamless pipe material. According to the invention, the problem that oil mark on the surface of the pipe material caused by uneven coating of lubricating oil when the squeezing needle is used can be solved, and the problem that metal is easy to adhere on the surface of the squeezing needle so that the scratch is generated on the interior surface of the pipe material can be solved. The squeezing needle used for producing the lubrication-free heat squeezing seamless pipe material comprises a needle core (1), a cemented carbide coat (2) and a screw (3), the needle core (1) is arranged in the cemented carbide coat (2), the lower end of the needle core (1) is parallel with the lower end of the cemented carbide coat (2), the needle core (1) is sealed in the cemented carbide coat (2) through the screw (3). The squeezing needle is used for producing the lubrication-free heat squeezing seamless pipe material.

Description

technical field [0001] The invention relates to an extrusion needle for producing hot-extruded seamless pipes, in particular to an extrusion needle for producing non-lubricated hot-extruded seamless pipes. Background technique [0002] In the past, the extrusion needle material used by the 600-ton hydraulic press to extrude seamless pipes was H13, and the hardness was HRC48-52. When extruding, apply a layer of lubricating oil to the extrusion needle and the inner hole of the ingot. If the oil is unevenly applied, there will be oil spots on the inner surface of the extruded pipe; the surface of the extrusion needle is easy to stick to metal, causing scratches and scratches on the inner surface of the pipe. Damage and other defects, it is difficult to clean up in the subsequent process, resulting in the scrapping of pipes in batches, which seriously affects the use requirements of aviation conduits. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C25/04
Inventor 王丽巍王树滨秦丽艳孙迪刘科研
Owner NORTHEAST LIGHT ALLOY CO LTD
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