CN109576703A - A kind of manual tin plating method of nonstandard copper pipe - Google Patents

Abstract

The present invention discloses a kind of manual tin plating method of nonstandard copper pipe, includes the following steps: step 1: spots such as the patinas to rub on the nonstandard copper pipe tube wall of removal；Step 2: uniformly filling solder paste in the inner wall of nonstandard copper pipe；Step 3: being put into corresponding root solder stick in nonstandard copper pipe；Step 4: with spray gun in nonstandard copper pipe external heat, while nonstandard copper pipe is rotated, it is plated in after the solder stick fusing inside nonstandard copper pipe and uniformly on nonstandard copper pipe copper pipe inner wall.Compared with prior art, present invention process is simple, easy to operate, and tin layers are uniform, low-cost, is suitble to small lot manual operations.

Description

A kind of manual tin plating method of nonstandard copper pipe

Technical field

The present invention relates to nonstandard pipe fitting, the manual tin plating method of specifically a kind of nonstandard copper pipe.

Background technique

In fields such as generation information industry, rail traffic, new-energy automobile, electrical circuitry equipments sometimes for using caliber Non- unification, axial not straight nonstandard copper pipe, its surface of internal cavity oxidation and by acid, alkaline matter corrosion in order to prevent, Or be raising conductive capability, welding performance, it needs in one layer of tin of its inner wall coating, although can be produced by electroplating technology, Nonstandard copper pipe in irregular shape so is sometimes used only one, two, causes cost high since batch is less.It is existing Wicking method is unable to get uniform tin layers, and certain is very thick, another place is very thin, tin plating unevenly to injure the entire copper pipe longevity Life.

Summary of the invention

The purpose of the present invention is overcoming the prior art, a kind of manual tin plating method of nonstandard copper pipe is disclosed, including walk as follows It is rapid:

Step 1: the coefficient of friction that bondage can penetrate in nonstandard copper pipe among the finer wire for being more than two times of nonstandard copper pipe length is big Emery cloth group or steel wire lump, after one end of finer wire passes through nonstandard copper pipe, the both ends for stressing on both hands finer wire roll into a ball emery cloth or steel Pompon is drawn repeatedly in nonstandard copper pipe, and nonstandard copper pipe is rotated while dilatory, and friction removes the copper on nonstandard copper pipe tube wall The spots such as rust；

Step 2: the cotton group of solder paste was dipped in bondage among the finer wire for being more than two times of nonstandard copper pipe length, referring to the first step Dilatory method, uniformly fill solder paste in the inner wall of nonstandard copper pipe；

Step 3: the corresponding root solder stick slightly longer than in nonstandard copper pipe is put into nonstandard copper pipe according to the thickness of required tin layers, Then the cotton group that second step uses is dragged in from the end, hauls out from the other end, so that solder stick is most by the solder stick of fixed one end Amount is bonded the inner wall of nonstandard copper pipe, wipes out the part that solder stick exceeds nonstandard copper pipe both ends；

Step 4: nonstandard copper pipe both ends are blocked with iron cap, with spray gun in nonstandard copper pipe external heat, while rotating nonstandard copper It manages, is plated in after the solder stick fusing inside nonstandard copper pipe and uniformly on nonstandard copper pipe copper pipe inner wall.

Solder paste is also scaling powder, is welding process to be helped and promoted in welding procedure, while having protective effect, resistance The only chemical substance of oxidation reaction.There is " auxiliary heat transfer ", " removal oxide ", " reduce and be soldered material surface tension ", " go Except soldered material surface and oil contaminant, increase bonding area ", the effect of the several respects such as " preventing from reoxidizing ".

Compared with prior art, present invention process is simple, easy to operate, and tin layers are uniform, low-cost, is suitble to small lot hand Work operation.

Specific embodiment

To one end internal diameter 20mm, middle part internal diameter 240mm, other end internal diameter 15mm, length 30cm nonstandard copper pipe into Row is tin plating:

Step 1: bondage can penetrate the big emery cloth group of the coefficient of friction in nonstandard copper pipe among the finer wire of length 80cm, from The outer diameter about 40cm that emery cloth is rolled into a ball under right state, after one end of finer wire passes through nonstandard copper pipe, the both ends for stressing on both hands finer wire make It is drawn repeatedly in nonstandard copper pipe after the compression of emery cloth group, nonstandard copper pipe is rotated while dilatory, friction removes nonstandard copper pipe pipe The spots such as the patina on wall；

Step 2: the cotton group of solder paste was dipped in bondage among the finer wire of another root long degree 80cm, cotton group under natural conditions Outer diameter about 35cm, referring to the first step dilatory method, uniformly fill solder paste in the inner wall of nonstandard copper pipe；

Step 3: required tin layers with a thickness of 0.2mm, according to calculating, to need to be put into 12 diameters in nonstandard copper pipe be 1mm, length Degree is the solder stick of 40cm, the solder stick of fixed one end, is then dragged in the cotton group that second step uses from the end, from the other end It hauls out, so that solder stick is bonded the inner wall of nonstandard copper pipe as far as possible, wipes out the part that solder stick exceeds nonstandard copper pipe both ends；

Step 4: nonstandard copper pipe both ends are blocked with iron cap, with spray gun in nonstandard copper pipe external heat, while rotating nonstandard copper It manages, is plated in after the solder stick fusing inside nonstandard copper pipe and uniformly on nonstandard copper pipe copper pipe inner wall.

Claims (1)

1. a kind of manual tin plating method of nonstandard copper pipe, which comprises the steps of:

Step 1: the coefficient of friction that bondage can penetrate in nonstandard copper pipe among the finer wire for being more than two times of nonstandard copper pipe length is big Emery cloth group or steel wire lump, after one end of finer wire passes through nonstandard copper pipe, the both ends for stressing on both hands finer wire roll into a ball emery cloth or steel Pompon is drawn repeatedly in nonstandard copper pipe, and nonstandard copper pipe is rotated while dilatory, and friction removes the copper on nonstandard copper pipe tube wall The spots such as rust；

Step 2: the cotton group of solder paste was dipped in bondage among the finer wire for being more than two times of nonstandard copper pipe length, referring to the first step Dilatory method, uniformly fill solder paste in the inner wall of nonstandard copper pipe；

Step 3: the corresponding root solder stick slightly longer than in nonstandard copper pipe is put into nonstandard copper pipe according to the thickness of required tin layers, Then the cotton group that second step uses is dragged in from the end, hauls out from the other end, so that solder stick is most by the solder stick of fixed one end Amount is bonded the inner wall of nonstandard copper pipe, wipes out the part that solder stick exceeds nonstandard copper pipe both ends；

Step 4: nonstandard copper pipe both ends are blocked with iron cap, with spray gun in nonstandard copper pipe external heat, while rotating nonstandard copper It manages, is plated in after the solder stick fusing inside nonstandard copper pipe and uniformly on nonstandard copper pipe copper pipe inner wall.