Unlock instant, AI-driven research and patent intelligence for your innovation.

Copper zipper dip-tinning process and tinned copper zipper

A technology of immersion tinning and tinning copper, which is applied in metal material coating process, liquid chemical plating, coating, etc., can solve problems such as excessive foam and drug residue, turbidity and opacity, and easy blockage of dragging bearings, etc. Excellent color fastness to rubbing, excellent corrosion resistance, and excellent migration resistance

Pending Publication Date: 2022-01-21
ZHEJIANG WEIXING IND DEV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] (2) The chemical immersion tin solution (Huangdian Baiyao coloring water) has high viscosity, turbidity and opacity, many foams and drug residues, and looks like paste. There are many hidden dangers in production and use. The problem of yellowish color is common. At the same time, the on-site coloring equipment is seriously polluted, especially the towing bearing is easy to block, the cloth belt is difficult to clean, the tooth color difference is obvious before and after drying, and rework often occurs;
[0011] (3) The cost of coloring is high, and a new potion needs to be replaced every 2 to 3 days

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Copper zipper dip-tinning process and tinned copper zipper
  • Copper zipper dip-tinning process and tinned copper zipper
  • Copper zipper dip-tinning process and tinned copper zipper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] 1. Use the stripper chain with a strip of the oil to immerse 45s at normal temperature.

[0078] The components and content of the removal oil are shown in Table 2;

[0079] Table 2 Component and content of the removal oil

[0080]

[0081] 2. The copper chain obtained by step 1 is immersed in tin plating solution, and then washed clean; the temperature of the tin coating solution is 36 ° C, and the time is 45 s;

[0082] The components and content of the tinned solution are shown in Table 3;

[0083] Table 3 Components and content of tin plating solution

[0084] project name Content range Tin (SNCL) 2 · 2h 2 O)

16g / L Citric acid (H 3 C 6 Hide 5 O 7 )

40g / L Disodium ethylenediamine (EDTA-2NA) 5g / L Sodium subtracite (Nah 2 PO 2 · H 2 O)

15g / L Thiourea (NH 2 ) 2 Cs

50g / L Polyethylene glycol 6000 (PEG6000) 1g / L Dodecyl sodium sulfate (K12) 0.05g / L Emulsifier MOA-9 2ml / L Following agent X-409 0.4g...

Embodiment 2

[0088] 1. Wash the water after dipping 40s at normal temperature by using a strip of the strip.

[0089] The components and content of the removal oil are shown in Table 4;

[0090] Table 4 Component and content of the removal oil

[0091]

[0092] 2, the copper chain obtained by step 1 is immersed in tin plating solution, then washed clean; the temperature of the tin coating solution is 35 ° C, the time is 40 s;

[0093] The components and content of the tinned solution are shown in Table 5;

[0094] Table 5 Components and content of tin plating solution

[0095]

[0096]

[0097] 3. Use the colored copper blanket in a pure alkaline solution and 30s, then washed clean; the concentration of the pure alkaline solution is 2%;

[0098] 4, centrifuge dry dehydration, dry, upper transparent paint (rainfield two-component transparent 油), dried at 120 ° C to give a tinned copper zipper.

Embodiment 3

[0100] The tin plated copper zipper prepared by Examples 1 and 2 perform performance detection, as shown in Table 6.

[0101] Table 6 Performance test results of the tinned copper zipper prepared by Examples 1 and 2

[0102]

[0103] As can be seen from Table 6, the tin plated copper zone tip prepared by the present invention will be pulled back and driven back and driven back to 1000, and there is no change in detrimentary resistance. It is excellent in derivation of the detrition resistance; Enzyme washing and stone grinding water, no change in teeth; 5% salt fog 48h, no change in teeth, corrosion resistance; rubbing the color layer with white cloth, white cloth has a slight spots, and the anti-removal performance is better.

[0104] Further, the conventional copper zipper dip tin plating process, which is mentioned in the context of the present invention is 0.085 yuan / m, and the coloring cost of the copper zipper tin plating process provided by the present invention is 0.04...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of zipper production, in particular to a copper zipper dip-tinning process and a tinned copper zipper. The copper zipper dip-tinning process comprises the following steps of: A) derusting and deoiling a copper billet zipper; B) dipping the derusted and deoiled copper billet zipper in a tin plating solution, wherein in the tin plating solution, the content of stannous chloride is 10-20 g / L, the content of citric acid is 30-50 g / L, the content of ethylenediamine tetraacetic acid disodium salt is 2-8 g / L, the content of sodium hypophosphite is 10-20 g / L, the content of thiourea is 40-60 g / L, the content of polyethylene glycol is 0.5-1.5 g / L, the content of lauryl sodium sulfate is 0.05-0.1 g / L, the content of an emulsifier is 2-3 mL / L, and the content of a defoaming agent is 0.2-0.5 g / L; C) carrying out treating by adopting a sodium carbonate solution; and D) carrying out washing and drying to obtain the tinned copper zipper. The tin-plated copper zipper prepared by the method is relatively excellent in dye migration resistance.

Description

Technical field [0001] The present invention relates to the field of zipper production, and more particularly to a copper zippermetal tin plating process and a tinned copper zipper. Background technique [0002] The process of existing copper zipping tin plating processes include: [0003] Copper blanket → 2% alkaline except oil solution → Wash three sink → dipping tin → Wash Multiple sink → Dry drying through transparent → plating white copper products (yellow electric white); [0004] The components and matching of Sab Huang Electric White Pharmaceutical Water (SAB Water) are shown in Table 1: [0005] Table 1 Tissue solution composition and ratio [0006] [0007] The essence of the existing copper zippermetal tin plating process is: the copper blanket enters the chemical immersion tin liquid (white copper water), and the single copper (Cu) is instantially replaced into silver white mononite tin (Sn) because of the immersion Sullaud in tinned liquid (NH 2 CSNH 2 ), With CU 2...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/54C23G5/06
CPCC23C18/54C23G5/06
Inventor 屈建平
Owner ZHEJIANG WEIXING IND DEV