A lead-free continuous vacuum distillation equipment for lead-tin alloy

Abstract

The invention relates to the technical field of vacuum distillation, and discloses a lead-tin alloy lead-free continuous vacuum distillation equipment, which includes a casing, and a feeding pipe is fixedly installed on the upper end of the left side of the casing, and the left side of the feeding pipe is fixed An injection cylinder is installed, the front of the top of the injection cylinder is provided with a material injection port, and the middle part of the top of the injection cylinder is fixedly installed with a first motor, and the bottom of the first motor is fixedly equipped with an agitator. The inner lower end is fixedly installed with a swash plate. This lead-tin alloy lead-free continuous vacuum distillation equipment achieves the purpose of high work efficiency by setting up tilting plates, electric heaters and shells, etc. The materials to be processed are continuously injected through the injection pipe, often at the bottom of the slope. The plate is filled first, and then filled up sequentially. The filled material is divided by the inclined plate, so the degree of accumulation is low. When the electric heater is heated, the electric heat energy can quickly enter each inclined plate.

Description

technical field [0001] The invention relates to the technical field of vacuum distillation, in particular to a lead-tin alloy lead-free continuous vacuum distillation equipment. Background technique [0002] Lead-based or tin-based bearing alloys, antimony and copper are used to improve the strength and hardness of the alloy. In the acid electrolyte of simple complex ions, the lead-tin alloy can be co-deposited at a very low current density. The lead-tin alloy coating Compared with lead plating and tin plating of the same thickness, the porosity is lower, and the lead-tin alloy containing 60% tin and 40% lead has the lowest eutectic point of 183°C, and its soldering performance far exceeds that of pure tin plating. Therefore, in aerospace , The electronic and electrical industry has been widely used, with stable performance, low melting point, good fluidity and small shrinkage. Fine grain, good toughness, soft and hard, smooth surface, no sand holes, no defects, no cracks, ...

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Problems solved by technology

[0003] For the treatment of tin-lead alloys, the most common method is to use vacuum distillation equipment to heat the material into a gas, and then undergo condensation treatment, combined with the characteristics of the material itself, to easily achieve the separation of different materials. Now Some lead-tin alloy lead-free continuous vacuum distillation equipment still has some problems in use: in order to ensure the continuous operation of the equipment, there are often a large amount of materials left in the evaporation chamber, and the materials are too densely piled up, which is not conducive to the heating of the equipment. processing, thus greatly reducing the work efficiency of material vaporization

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