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High-temperature preheating device for surfacing welding

A preheating device and high temperature technology, applied in auxiliary devices, welding equipment, auxiliary welding equipment, etc., can solve problems such as uneven preheating temperature, and achieve the effect of uniform preheating temperature and high degree of automation

Inactive Publication Date: 2019-04-05
浙江富春江水电设备股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a high-temperature preheating device with uniform preheating temperature in order to overcome the disadvantage of uneven preheating temperature in the prior art

Method used

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  • High-temperature preheating device for surfacing welding
  • High-temperature preheating device for surfacing welding

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0016] figure 1 and figure 2 It is a high-temperature preheating device for surfacing welding, including a base 3 on which a number of rollers 1 for supporting a cylindrical workpiece 5 are hinged, and the rollers 1 abut against the two ends of the workpiece 5, The base 3 is fixedly fixed with an outer heating plate 2, the outer heating plate 2 is sleeved in the middle of the workpiece 5, and the base 3 is fixed with an inner heating plate 18 adapted to the workpiece 5. The inner heating plate 18 is located in the workpiece 5, the base 3 is fixedly connected with a rotating shaft 4 coaxial with the workpiece 5, the rotating shaft 4 is fixedly connected to one end of the workpiece 5, and a sliding groove 6 is provided on one side of the outer heating plate 2. The sliding groove 6 is parallel to the axis on which the outer heating plate 2 is located,...

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Abstract

The invention discloses a high-temperature preheating device for surfacing welding, and relates to the field of surfacing welding preheating devices. The device comprises a base, a plurality of rollers for supporting a cylindrical workpiece are hinged to the base, an outer heating piece is fixedly connected to the base, an inner heating piece matched with the workpiece is fixedly connected to thebase, a rotating shaft coaxial with the workpiece is fixedly connected to the base, a sliding groove is formed in one side of the outer heating piece, a sliding piece matched with the sliding groove is in sliding connection with the interior of the sliding groove, a welding gun is fixedly connected to the side, away from the inner heating piece, of the sliding piece, the base is provided with a welding operation frame, the welding gun comprises a gun head, a temperature control box is arranged on the outer side of the outer heating piece, the outer heating piece, the sliding piece and the inner heating piece are electrically connected with the temperature control box, a heating piece support is fixedly connected with the interior of the inner heating piece, the inner heating piece comprises a plurality of heating strips, clamping grooves are formed in the positions, corresponding to the heating strips, on the outer surface of heating piece support, the sides, close to the clamping grooves, of the heating strips are provided with clamping blocks matched with the clamping grooves, and the heating strips are electrically connected with the temperature control box. Preheating temperature is uniform.

Description

Technical field [0001] The invention belongs to the field of surfacing welding preheating devices, and particularly relates to a high-temperature preheating device for surfacing welding. Background technique [0002] Cobalt-based alloy surfacing welding of small-sized workpieces is widely used in the industry. Because the elongation of cobalt-based alloys at room temperature is almost zero, they must be preheated to a higher temperature before surfacing. The prior art generally preheats the workpiece to a specified temperature through flame heating, and then performs heat compensation through welding heat input to ensure that the temperature of the workpiece always meets the process requirements. However, for large-sized 316 austenitic stainless steel workpieces, such as parts in nuclear power generators, due to their huge volume, flame preheating has many defects. Among them, uneven preheating temperature of the workpiece becomes a major problem. Summary of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/00
CPCB23K37/00
Inventor 孙凡刘金湘俞增强郑圣赶贺彦鹏胡玲翠刘四海陈祥火姜鹏
Owner 浙江富春江水电设备股份有限公司
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