Treatment method capable of improving surface oxidation resistance of heat pipe and heat plate liquid absorbing cores

A processing method and technology of absorbent core, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve the problem of easy oxidation of copper surface, reduce production costs, change the preparation process, and improve production. The effect of efficiency

Inactive Publication Date: 2019-03-22
江西华度电子新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a treatment method for improving the oxidation resistance of the surface of the heat pipe and hot plate liquid-absorbing core, which solves the problem that the copper surface is easy to oxidize, thereby ensuring that the liquid-absorbing core does not need to be subjected to high-temperature hydrogen Reduction can maintain good capillary force, which changes the current preparation process of liquid absorbent core, improves production efficiency and greatly reduces production cost

Method used

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  • Treatment method capable of improving surface oxidation resistance of heat pipe and heat plate liquid absorbing cores
  • Treatment method capable of improving surface oxidation resistance of heat pipe and heat plate liquid absorbing cores
  • Treatment method capable of improving surface oxidation resistance of heat pipe and heat plate liquid absorbing cores

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Embodiment 1

[0022] A treatment method for improving the oxidation resistance of the surface of heat pipes and heat plate liquid-absorbing cores, characterized in that it comprises the following steps:

[0023] (1) Degreasing treatment to remove the oil stain on the surface of the workpiece; put the hung workpiece containing the slotted copper wall type liquid-absorbing core into the degreasing tank to remove the oil stain on the surface. Specifically, the degreasing treatment solution is: Sodium carbonate 20g / l, sodium silicate 3g / l, trisodium phosphate 10g / l, sodium hydroxide 10g / l, OP emulsifier 3ml / l, temperature 80-85℃, time 10min;

[0024] (2), activation treatment, removing copper oxide on the surface of the workpiece; specifically, activation with 5% sulfuric acid by weight, temperature 20-30 ° C, time 10 min;

[0025] (3), nickel plating treatment, one layer of alloy nickel layer is plated on the surface of the workpiece; specifically, the nickel plating bath is: sodium hypophosph...

Embodiment 2

[0028] A treatment method for improving the oxidation resistance of the surface of heat pipes and heat plate liquid-absorbing cores, characterized in that it comprises the following steps:

[0029] (1) Degreasing treatment to remove the oil stain on the surface of the workpiece; put the hung workpiece containing the slotted copper wall type liquid-absorbing core into the degreasing tank to remove the oil stain on the surface. Specifically, the degreasing treatment solution is: Sodium carbonate 35g / l, sodium silicate 4g / l, trisodium phosphate 15g / l, sodium hydroxide 15g / l, OP emulsifier 4ml / l, temperature 80-85℃, time 8min;

[0030] (2), activation treatment, removing the copper oxide on the surface of the workpiece; specifically, activating with 10% sulfuric acid by weight, at a temperature of 20-30° C., for 8 minutes;

[0031] (3), nickel plating treatment, a layer of alloy nickel layer is plated on the surface of the workpiece; specifically, the nickel plating bath is: sodiu...

Embodiment 3

[0034] A treatment method for improving the oxidation resistance of the surface of heat pipes and heat plate liquid-absorbing cores, characterized in that it comprises the following steps:

[0035] (1) Degreasing treatment to remove the oil stain on the surface of the workpiece; put the hung workpiece containing the slotted copper wall type liquid-absorbing core into the degreasing tank to remove the oil stain on the surface. Specifically, the degreasing treatment solution is: Sodium carbonate 50g / l, sodium silicate 5g / l, trisodium phosphate 20g / l, sodium hydroxide 20g / l, OP emulsifier 5ml / l, temperature 80-85℃, time 5min;

[0036] (2), activation treatment, removing copper oxide on the surface of the workpiece; specifically, activating with 15% sulfuric acid by weight, at a temperature of 20-30° C., for 5 minutes;

[0037] (3), nickel plating treatment, plate a layer of alloy nickel layer on the surface of the workpiece; specifically, the nickel plating bath is: sodium hypoph...

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Abstract

The invention relates to a treatment method capable of improving surface oxidation resistance of heat pipe and heat plate liquid absorbing cores. The treatment method is characterized by comprising the following steps: (1) activating treatment: copper oxide on the surfaces of workpieces is removed; and (2) nickel plating treatment: alloy nickel layers are plated on the surfaces of the workpieces.The treatment method solves the problem of easy oxidation of copper surfaces, guarantees maintenance of excellent capillary force of the liquid absorbing cores without needing high-temperature hydrogen reduction, changes the preparation process flow of a traditional liquid absorbing core, improves the production efficiency, and greatly reduces the production cost.

Description

technical field [0001] The invention relates to the manufacture of a hot plate liquid-absorbing core, in particular to a treatment method for improving the oxidation resistance of the surface of a heat pipe and a hot plate liquid-absorbing core. Background technique [0002] Tubes and hot plates are widely used as heat transfer devices for electronic products. The liquid-absorbing core inside the hot plate contains rich capillary structure, which plays a very important role in the heat transfer effect. At present, the liquid-absorbing core mainly adopts copper powder sintering, pipe wall slotting, and copper mesh attachment methods to prepare the liquid-absorbing core, such as figure 1 Slotted copper wall wicks shown with grooved tube walls, such as figure 2 Shown is a copper mesh wick attached to the copper mesh, as image 3 Shown is a sintered copper wick with sintered copper powder. These three types of liquid-absorbing cores are in direct contact with the copper on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/36C23C18/18
CPCC23C18/1844C23C18/36
Inventor 邵志松周韦曹经倩史少欣
Owner 江西华度电子新材料有限公司
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