Siphon-type degreasing device and degreasing method thereof

Abstract

The invention discloses a siphon-type degreasing device and a degreasing method thereof and belongs to the technical field of degreasing devices of powder metallurgy injection molding parts. The siphon-type degreasing device comprises a furnace pipe platform, a furnace pipe, a furnace body, a trap, a vacuumizing mechanism and a protective gas introducing tube, wherein the furnace pipe platform is provided with one group of hanging legs; the center of one upward side of the furnace pipe platform under a using state is provided with at least one base; the base is provided with a longitudinal through hole; at least one group of lateral through holes are arranged at intervals on the side surface of the base and around the circumstance direction of the base; the furnace pipe is arranged on the furnace pipe platform; the furnace body is sheathed at the exterior of the furnace pipe; a group of electric heating rods are laid in the inner wall of the furnace body; the trap is fixed on the center part of one side, which faces to the hanging legs, of the furnace pipe platform; the vacuumizing mechanism is arranged on one side of the furnace body; one end of the protective gas introducing tube extends into a furnace pipe cavity via the furnace pipe platform; and the other end of the protective gas introducing tube is connected with a protective gas source device. The siphon-type degreasing device has the advantages that the degreasing speed is improved, and the furnace pipe platform can be conveniently cleaned. By utilizing the siphon-type degreasing device, the safety of operating personnel can be guaranteed, the environmental friendliness is achieved, the production efficiency is improved, and the energy consumption is saved.

Description

technical field [0001] The invention belongs to the technical field of degreasing devices for powder metallurgy injection molding parts, in particular relates to a siphon type degreasing device, and also relates to a degreasing method. Background technique [0002] Metal injection molding technology (Metal Injection Molding, referred to as MIM) is a technology that integrates plastic molding technology, polymer chemistry, powder metallurgy technology, and metal materials. Products with complex shapes can be sintered to manufacture structural parts with high density, high precision and three-dimensional complex shapes. This technology was first invented in the last century (1973) by Parmatech Corporation of California, USA, and was widely used in Europe, America and Japan in the early 1980s. This technology has the advantages of fewer process steps, no cutting or a small amount of cutting and high economic benefits, and can overcome the traditional powder metallurgy process ...

AI Technical Summary

Problems solved by technology

[0006]A typical example is the "vacuum degreasing and sintering integrated furnace" disclosed by the utility model patent authorization announcement number CN2595500Y. The technical effects mentioned in the 7th to 9th lines on page 2, but there are the following deficiencies: First, the degreasing speed is slow, because only the exhaust pipe protruding into the furnace body from the bottom of the furnace body (the patent is called the furnace body exhaust channel) It is difficult to lead the adhesive gas volatilized from the blank in the furnace out of the furnace under negative pressure; second, it is inconvenient to load the blank into the furnace and take out the finished product, and the patent does not provide technical inspiration for loading the blank into the furnace; Third, the structure of the furnace body is unreasonable and it is not easy to clean, because during use, especially during the process of loading the blank into the furnace, there will inevitably be damage to the blank. If it cannot be cleaned in time, it will affect subsequent use

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