Core soldering tin bar continuous casting and extruding machining system and molding technology thereof

Abstract

The invention discloses a core soldering tin bar continuous casting and extruding machining system and a molding technology thereof. Metal tin is molten in a rotating ventilation purifying furnace (1), nitrogen or hexachloroethane is led through a graphite rotator (6), and slag is brought out; molten tin flows into a heat preserving furnace (2), slag and impurities are blocked through a baffle and a filter screen, and purified melt enters a discharging cavity, flows into a flow furnace (3), and finally flows into a continuous extrusion machine (4); molten metal (16) flows to an extruding groove (8a) of a rotating extruding wheel, in the rotating process of the extruding wheel, solidifying and molding of the molten metal are completed, meanwhile, cold air blows the extruding groove through a ventilation pipe (13), heat of the extruding wheel is brought away, and cooling water in a cooling water circular channel (12) cools the extruding wheel; then, the molten metal enters a mold (10) through an extruding die (9), meanwhile, scaling powder is injected into the mold, casting and extruding are carried out, and a bar (15) is obtained. The production efficiency is high, an internal structure of a product is uniform, core breaking is not prone to happening, and the surface quality is good.

Description

technical field [0001] The invention relates to the technical field of cored solder rod production equipment and production technology. Background technique [0002] The continuous casting and extrusion process of cored solder bar is a new type of tin material processing and forming technology, which has a wide range of applications. The traditional processing of cored solder wire often adopts the horizontal continuous casting process to prepare ingots of a certain size, then extrude them, inject flux at the same time, and then draw wires. In this processing technology, core breakage during flux injection is a common problem in the industry. In addition, due to the poor structure of tin metal in the traditional processing technology, problems with the wire diameter and the surface quality of the solder wire often occur in the wire drawing process. Therefore, it is necessary to improve the existing production process. Contents of the invention [0003] The purpose of the...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low production efficiency, poor product surface quality, and uneven internal structure of the existing cored solder wire, and provide a cored solder wire with high production efficiency, uniform internal structure, not easy to break the core, and good surface quality. Continuous casting and extrusion processing system of cored solder bar and its molding process

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