Nano samarium oxide-modified monomer casting (MC) nylon sliding block and production process thereof

Abstract

The invention relates to a nano samarium oxide-modified monomer casting (MC) nylon sliding block and a production process thereof. The nano samarium oxide modified MC nylon sliding block comprises the following materials: 100 parts by weight of master batch hexanolactam, 0.5-1.0 part by weight of nano samarium oxide, 0.12-0.2 part by weight of accelerator sodium hydroxide, 0.3-0.7 liter of curingagent TDI (toluene diisocynate), 2-3 parts by weight of solid lubricant molybdenum disulfide, 0.5-0.8 part by weight of graphite, and 0.3-0.5 part by weight of boron nitride. The production process comprises the specific production steps of: heating up a die, feeding the materials, solidifying for molding, processing internal stress, and machining. The product disclosed by the invention can transfer the born external stress well, as well as can bend a matrix to consume a lot of impact energy, so that an effect for simultaneously increasing the toughness and strength of the product is obtained. According to the production process of the product, disclosed by the invention, a centrifugal casting technology is adopted, so that internal air holes of the product are eliminated, and product quality problems of steel casting sliding blocks caused by defects such as internal air holes, inclusion and the like are solved.

Description

technical field [0001] The invention relates to a novel engineering plastic and its production process, in particular to a nanometer samarium oxide modified MC nylon slider and its production process. Background technique [0002] MC nylon is a new type of engineering plastic made of caprolactam as the main raw material through anionic polymerization under normal pressure. MC nylon is gradually replacing copper, aluminum, steel and other metal materials and is widely used in textile, rubber, petrochemical, steel rolling, mining machinery, automobile, elevator, crane and other industries. However, compared with metals, MC nylon also has disadvantages such as lower strength, modulus and heat distortion temperature, higher water absorption, and poorer dimensional stability. [0003] In recent years, research on modified MC nylon has been active at home and abroad. Common modification methods are mainly carbon fiber or glass fiber reinforcement, inorganic particle filling, cop...

AI Technical Summary

Problems solved by technology

Traditional modification methods are all at the expense of certain aspects of the material’s performance. When the impact toughness of the material is increased, its tensile strength, stiffness and other related properties decrease. When the tensile strength and stiffness of the material are increased, its The toughness has deteriorated, it is really a loss