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Low-temperature packaging material for VC soaking plate, preparation method and application thereof

A technology of packaging materials and vapor chambers, which is applied in the direction of welding/cutting media/materials, manufacturing tools, welding equipment, etc., can solve the problems of insufficient strength and corrosion resistance of packaging materials, and achieve improved welding strength and corrosion resistance, Improves grain boundary strength and facilitates spheroidization

Inactive Publication Date: 2020-09-11
JIANGSU JICUI ADVANCED METAL MATERIAL RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a low-temperature packaging material for VC vapor chambers to solve the problem of insufficient strength and corrosion resistance of the packaging material in the prior art, which can significantly improve the strength of the packaging material, and make the alloy Purification, grain refinement and package strength are significantly improved

Method used

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  • Low-temperature packaging material for VC soaking plate, preparation method and application thereof
  • Low-temperature packaging material for VC soaking plate, preparation method and application thereof
  • Low-temperature packaging material for VC soaking plate, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] First, prepare the raw materials according to the following components:

[0048]

[0049] Thereafter, the specific preparation steps include:

[0050] 1. Mix Cu powder B powder and Fe powder in proportion in the mixer evenly;

[0051] 2. Add KF to a blender filled with deionized water and stir for 10 minutes;

[0052] 3. Add ethyl hydroxyethyl cellulose, guar gum and gum arabic to the above aqueous solution in proportion, stir for 120 minutes, then add glycerin, hydrogenated castor oil, silicone oil and acetylene glycol, stir for 10 minutes, and form a mixture of brazed agent into a paste;

[0053] 4. Add the mixed Cu powder, B powder and Fe powder into the paste, and stir for 45 minutes to make a packaging material.

[0054] The encapsulation material prepared according to Example 1 is mainly used for encapsulating heat dissipation modules. After encapsulation, there is no residue on the surface of the component, the weld seam is fine and dense, and it has very h...

Embodiment 2

[0056] First, prepare the raw materials according to the following components:

[0057]

[0058] Thereafter, the specific preparation steps include:

[0059] 1. Add Cu 余量 B 2 sn 10 Ni powder and Ni powder are mixed evenly in the mixer in proportion;

[0060] 2. Mix dipropylene glycol butyl ether and 1,2-propanediol in a mixer for 10 minutes;

[0061] 3. Add sebacic acid and lauric acid to the above solvent;

[0062] 4. Add ethyl hydroxyethyl cellulose and methyl acrylate to the above solution in proportion, stir for 90 minutes, then add modified castor oil and acetylene glycol, and stir for 10 minutes to form a paste mixed with flux;

[0063] 5. The mixed Cu 余量 B 2 sn 10 Ni powder and Ni powder were added to the paste and stirred for 45 minutes to make packaging materials.

[0064] The packaging material prepared according to Example 2 is used for welding stainless steel components. After welding, the surface of the part is consistent with the color of the weld sea...

Embodiment 3

[0066] First, prepare the raw materials according to the following components:

[0067]

[0068] Thereafter, the specific preparation steps include:

[0069] 1. Add the Cu balance to B 2.5 sn 14 Ni 5 P 5 Powder and Cu 余量 B 2.5 sn 50 The powder is mixed evenly in the mixer according to the proportion;

[0070] 2. Mix diethylene glycol monoethyl ether and carbitol in a mixer for 10 minutes;

[0071] 3. Add hydroxypropyl starch, ethyl hydroxyethyl cellulose, hydroxypropyl starch and locust bean gum to the above solution in proportion, stir for 120 minutes, then add deionized salicylic acid amide and mineral oil, and stir for 10 minutes , forming a paste;

[0072] 4. The mixed Cu 余量 B 2.5 sn 14 Ni 5 P 5 Powder and Cu 余量 B 2.5 sn 50 Add the powder into the paste and stir for 45 minutes to make the encapsulation material.

[0073] The packaging material prepared according to Example 3 is used for low-temperature welding of ultra-thin vapor chamber components, an...

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Abstract

The invention discloses a low-temperature packaging material for a VC soaking plate, a preparation method and an application thereof. The packaging material comprises the following components of 53 wt%-94 wt% of solder, 6 wt%-47 wt% of a paste forming body, and a brazing agent with the use amount 0% to 9% of the mass of the solder, wherein the solder comprises a CuB alloy and / or one or more otheralloy elements, the brazing agent comprises any one or the combination of two of BaF<2>, CaF<2>, KF, NaF, succinic acid, sebacic acid, lauric acid and boric acid, and the paste forming body comprisesa solvent, a thickening agent, a rheological agent, a defoaming agent and an activating agent. The invention also discloses a preparation method of the low-temperature packaging material for the VC soaking plate. The packaging material prepared through the method has good soldering paste thixotropy, anti-collapse capability and fluidity in the soldering paste coating process before welding, the strength of a part joint after welding is high, the weld seam is full, no residue exists, the part does not need to be cleaned, and the material can be applied to a high-power heat dissipation module and a stainless steel part.

Description

technical field [0001] The invention relates to a welding material, in particular to a low-temperature packaging material for a VC vapor chamber, a preparation method and application thereof. Background technique [0002] With the development of high-efficiency mass production of modern industrial automation packaging (brazing), packaging (brazing) workpieces are increasingly miniaturized and mass-produced, and the shape of the weld seam is constantly diversified and complicated. It is the trend of the times to replace the traditional wire-like, ring-like and strip-like welding materials with paste-like welding materials-brazing paste to realize high-efficiency automatic welding production. In recent years, my country has continuously introduced foreign advanced automatic packaging (brazing) production lines, such as flame automatic brazing production lines and protective atmosphere mesh belt furnace brazing production lines; at the same time, many domestic manufacturers hav...

Claims

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Application Information

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IPC IPC(8): B23K35/24B23K35/363
CPCB23K35/025B23K35/24B23K35/362
Inventor 韩启航易翠莫文剑帅歌国
Owner JIANGSU JICUI ADVANCED METAL MATERIAL RES INST CO LTD