A brazing method for heat dissipation tubes and intermediate partitions of tube-and-tube radiators

A brazing method and technology of heat dissipation pipes, which are applied in the field of stainless steel brazing, can solve problems such as difficult assembly of partitions and heat dissipation pipes, and achieve the effects of ensuring brazing quality and avoiding brazing accumulation

Active Publication Date: 2021-10-01
GUIZHOU YONGHONG AVIATION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention aims to provide a remelting and brazing method for the partition plate and the heat dissipation tube in the tube radiator, so as to solve the problem of difficult assembly when the partition plate and the heat dissipation tube are brazed in the tube radiator

Method used

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  • A brazing method for heat dissipation tubes and intermediate partitions of tube-and-tube radiators
  • A brazing method for heat dissipation tubes and intermediate partitions of tube-and-tube radiators
  • A brazing method for heat dissipation tubes and intermediate partitions of tube-and-tube radiators

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0025] A method for remelting and brazing a partition plate and a heat dissipation pipe in a tube radiator, comprising the following steps:

[0026] Step 1: Degrease and pickle the surface of the stainless steel plate, and then degrease the surface of the 0.03mm thick BNi82CrSiB amorphous solder 1 (foil strip). After the stainless steel plate is dried, press figure 1 and figure 2 After assembling with the brazing material foil (that is, laying the brazing material foil on the surface of the stainless steel plate), perform micro-melting brazing with the brazing material. The average heating rate before micro-melting brazing is 10°C / min, and the micro-melting brazing temperature is 980 ℃, holding time is 5min;

[0027] Step 2: Press image 3 The composite plate formed by micro-melting brazing is punched and machined to form the middle partition 2. ...

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Abstract

The invention discloses a method for brazing a radiator tube of a tube radiator and a middle partition, comprising the following steps: step 1: laying multiple layers of 0.03mm thick BNi82CrSiB amorphous brazing filler metal on the surface of a stainless steel plate, and placing the brazing filler metal in a vacuum brazing furnace. Internally use brazing parameters of 980°C and heat preservation for 5 minutes with micro-melting solder; Step 2: Punch the composite plate formed by micro-melting brazing to form a middle partition to ensure that the diameter of the middle partition is larger than the outer diameter of the heat pipe. That is, the brazing gap is in the range of 0.04mm‑0.08mm; Step 3: Assemble the heat pipe into the hole of the middle partition; Step 4: Place the assembly in a vacuum brazing furnace and remelt it at 1070°C Brazing for 10min. The invention solves the problem that it is difficult to coat paste-like solder after assembling a plurality of heat dissipation pipes and partition plates.

Description

technical field [0001] The invention relates to the technical field of stainless steel brazing, in particular to a method for remelting and brazing a partition plate and a cooling pipe in a tube radiator. Background technique [0002] The inside of the tube of the stainless steel tubular radiator is a fuel chamber, and the outside of the pipe is an oil chamber, and the lubricating oil chamber is separated by a plurality of middle partitions to separate the lubricating oil flow channel to dissipate heat from the heat pipe. Usually, the partition plate and the heat dissipation pipe are only in an assembled state, and lubricating oil will flow through the assembly gap between the partition plate and the heat dissipation pipe, which reduces the heat dissipation efficiency of the heat dissipation pipe. In order to improve the heat dissipation efficiency of the fuel oil of the tube radiator, if a paste brazing material is used to coat the middle partition for brazing, since the he...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/20B23K1/008B23K1/00
CPCB23K1/0008B23K1/008B23K1/20
Inventor 吴长洪卓著龙本滔张邦
Owner GUIZHOU YONGHONG AVIATION MACHINERY
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