• 专利标题:   Wear-resistant self-lubricating composite material for elevator guide shoe lining, comprises nano-silicon carbide fibers, graphene and polylaurolactam.
  • 专利号:   CN113861670-A
  • 发明人:   BI C, CHEN M, DING C, SUN Y, ZHANG J, WANG R, YANG Y, LU Y
  • 专利权人:   XI AN SPECIAL EQUIP INSPECTION TESTING
  • 国际专利分类:   B29C045/00, C08K003/04, C08K007/10, C08K009/06, C08L077/02
  • 专利详细信息:   CN113861670-A 31 Dec 2021 C08L-077/02 202220 Chinese
  • 申请详细信息:   CN113861670-A CN11157389 30 Sep 2021
  • 优先权号:   CN11157389

▎ 摘  要

NOVELTY - Wear-resistant self-lubricating composite material comprises 4-6 wt.% nano-silicon carbide fibers, 4-6 wt.% graphene and 88-92 wt.% polylaurolactam. USE - Wear-resistant self-lubricating composite material used for elevator guide shoe lining. ADVANTAGE - The wear-resistant self-lubricating composite material has higher wear resistance and self-lubricating performance, reduces wear amount of guide shoe lining by 55% compared with commercially available nylon 12 guide shoe lining, and effectively protects elevator guide shoes and rails to extend service life. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: 1. a method for preparing wear-resistant self-lubricating composite material for elevator guide shoe linings, which involves: a. mixing nano-silicon carbide fiber, graphene and polylaurolactam to obtain mixed powder; b. mixing mixed powder with absolute ethanol to obtain mixed system A; c. adding deionized water to mixing system A, and ultrasonically dispersing for 4-8 hours to obtain mixing system B; and d. stirring mixed system B for 4-8 hours, under temperature condition of 80-120degrees Celsius, drying and screening to obtain wear-resistant self-lubricating composite material for elevator guide shoe lining; and 2. a method for applying wear-resistant self-lubricating composite material for elevator guide shoe lining, which involves: a. preparing composite material by injection molding machine to obtain elevator guide shoe lining, where barrel temperature of injection molding machine is 200-240degrees Celsius, nozzle temperature is 220-260degrees Celsius, and mold temperature is 80-120degrees Celsius, pressure is 60-80 megapascal, and screw speed is 60-100 revolutions/minute.