Solid cleaning agent for cleaning injection screw and mold hot runner and application thereof

Abstract

The invention discloses a solid cleaning agent for cleaning an injection screw and a mold hot runner and application thereof. The solid cleaning agent contains 80 to 90 parts by weight of matrix, 0.3 to 15.5 parts by weight of a cleaning agent, 0.5 to 2 parts by weight of a lubricating agent and 0.3 to 6 parts by weight of a surfactant, wherein the matrix is PE (Poly Ethylene), and the cleaning agent is selected from at least one of PP-G30, MgCO3 and PMA. The solid cleaning agent has the advantages of relatively high cleaning efficiency and relatively low cleaning cost.

Description

technical field [0001] The invention belongs to the technical field of polymer modification, in particular, the invention relates to a solid cleaning agent for cleaning an injection molding screw and a mold hot runner and an application thereof. Background technique [0002] With the continuous development of the current injection molding market, the variety of materials and colors used are more and less, and the structure of the hot runner of the mold is diversified, the color changes frequently, and the delivery cycle is short. The use of traditional cleaning methods no longer has the current competitive advantage in the industry, and is prone to the following defects: ①When switching from dark to light colors, the cleaning time is too long, which consumes a lot of manpower, material and financial resources, not only the washing efficiency is low, but also the cleaning is not thorough ; ② When switching raw materials, the dead corners and gaps of the screw contain impuriti...

AI Technical Summary

Problems solved by technology

The use of traditional cleaning methods no longer has the current competitive advantage in the industry, and is prone to the following defects: ①When switching from dark to light colors, the cleaning time is too long, which consumes a lot of manpower, material and financial resources, not only the washing efficiency is low, but also the cleaning is not thorough ; ② When switching raw materials, the dead corners and gaps of the screw contain impurities. After a period of production, black spots and variegated colors will still appear, and the product qualification rate is low; ③ Each color change consumes a lot of cleaning raw materials, and the raw materials after cleaning cannot Repeated use, resulting in high cost

Some imported brands need to soak for 3-5 minutes, which is inconvenient to use, and has certain limitations in terms of cleaning efficiency, environmental protection, and cost. For example, more environmentally friendly resin cleaning agents are difficult to clean into the dead corners and gaps of the screw barrel and other parts, the cleaning efficiency is low. At the same time, some brands have added abrasives, which will cause wear on the surface of precision screws, barrels, and hot runner equipment, and the prices of imported brand cleaning agents are very expensive.