I can't solder it. It doesn't stick together. It keeps getting old. It rolls on it, but it doesn't stick
First on the wire surface treatment, remove wire oxide, can make emery cloth polishing wire in welding thread shiny, then coated with flux (or rosin) easily welded.Aluminum core is not to toss about, definitely not an electric iron can be solved, you need special equipment.
Electric iron temperature should be higher first, power should be large, back to temperature faster. Otherwise, that's your situation,Secondly, the line to tin, welding position should first point tin,If the solder joint is stainless steel or copper plate, the first if iron is put up, to be weld preheating 3~5 seconds, and then on the point of flux, and then the tin, determine the good, wait a few seconds and then cooling, welding line, so there is no problem
Self-adhesive, non welding coating, insulating layer!That is, it can be coated with tin!1. the ends are dipped into the chlorinated rosin!2. take out and place on the insulation board!3. back and forth with Zhanman Rongxi tip friction on tin!4., after plating the upper part of tin, heavy immersion rosin!5. throw the tin out of the tin!6. use rosin soldering tin to solder it again!7. until the light can be!