Solder and insulation container welded by means of same

A thermal insulation container and solder technology, applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of poor welding fastness of titanium and stainless steel, poor quality of thermal insulation containers, etc., and achieve effective connection Effect

Active Publication Date: 2020-08-18
浙江库尔仕科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, the welding fastness of titanium and stainless steel is not good, and even ordinary welding methods cannot be welded together. On the contrary, the quality of the thermal insulation container with titanium inner liner and stainless steel outer shell is not good.

Method used

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  • Solder and insulation container welded by means of same
  • Solder and insulation container welded by means of same
  • Solder and insulation container welded by means of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A thermos cup has a titanium inner liner and a SUS304 stainless steel outer shell. After assembly, a welding cavity is left between the inner liner and the outer shell. The width of the welding cavity is 0.1mm, and vacuum brazing is carried out by solder. The solder is prepared by mixing 5% of 300-mesh zirconium powder, 9% of 300-mesh nickel powder, 78% of 300-mesh titanium powder and 8% of 300-mesh copper powder according to weight percentage.

[0028] The temperature of the vacuum brazing is 905°C, and the edge welding structure is adopted (inner tank and the mouth of the shell are welded together), and the holding time of the vacuum brazing is 50 minutes.

Embodiment 2

[0030] A thermos cup has a titanium liner and a SUS305 stainless steel shell. After assembly, a welding cavity is left between the liner and the shell. The width of the welding cavity is 0.5mm, and vacuum brazing is carried out by solder. The solder is prepared by mixing 5% of 800-mesh zirconium powder, 9% of 800-mesh nickel powder, 78% of 800-mesh titanium powder and 8% of 800-mesh copper powder according to weight percentage.

[0031] The temperature of the vacuum brazing is 930°C, and the welding structure is adopted (one of the mouth of the inner tank or the shell is crimped and welded with the mouth), and the holding time of the vacuum brazing is 70 minutes.

Embodiment 3

[0033] An inner tank of a thermal insulation container, the inner tank is compositely connected by titanium material and SUS309 stainless steel material through vacuum brazing to form a composite inner tank, the titanium material is on the inside, the stainless steel material is on the outside, and the outside of the composite inner tank can be set without modification or plastic case. The welding cavity (welding seam) of the welding part of the composite liner is 3.0mm. The solder is prepared by mixing 5% of 500-mesh zirconium powder, 9% of 500-mesh nickel powder, 78% of 500-mesh titanium powder and 8% of 500-mesh copper powder according to weight percentage.

[0034] The temperature of the vacuum brazing is 920° C., and the holding time of the vacuum brazing is 60 minutes.

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Abstract

The present invention relates to a solder and an insulation container welded by means of same. The solder comprises, in percentage by weight, 5% of zirconium, 9% of nickel, 78% of titanium, and 8% ofcopper. The insulation container comprises a titanium material liner and a stainless steel housing made of SUS304 stainless steel; a welding cavity is formed between the liner and the housing after assembly; the solder as described above is used for vacuum brazing; and the connection of the liner and the housing is implemented after welding. The present invention can implement the welding connection between the titanium liner and the stainless steel housing of the insulation container, is high in tensile strength of welded parts thereof and excellent in compactness, guarantees the quality of the insulation container, and prolongs the service life thereof.

Description

technical field [0001] The invention relates to a thermal insulation container and its processing technology, in particular to a solder and a thermal insulation container welded by the solder. Background technique [0002] At present, in addition to water in thermos cups, many people also pack acidic drinks such as fruit juice, fruit tea, fruit powder granules, and carbonated drinks. The main material of existing thermal insulation containers (especially thermos cups) is stainless steel, that is, the liner and shell of thermos cups are made of stainless steel. Stainless steel has a higher melting point and will not release undesirable substances due to high temperature melting. But stainless steel is most afraid of strong acid. If it is loaded with a strong acid drink for a long time, it is likely to damage its inner tank. Damage to the inner liner of the stainless steel thermos cup will cause accelerated migration of chromium, nickel, and manganese elements contained in s...

Claims

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Application Information

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IPC IPC(8): B23K35/32B23K35/02A47G19/22
CPCB23K35/325B23K35/0244A47G19/2205
Inventor 胡华成彭利泉
Owner 浙江库尔仕科技有限公司
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