Conhecimento da indústria
Parafusos ferroviáriosPeças mecânicas, prendedores rosqueados cilíndricos com nozes/mangas . Um tipo de prendedor que consiste em uma cabeça e um parafuso (um cilindro com roscas externas), que deve ser combinada com uma porca/luva para fixar e conectar duas partes com a (.}}}}} Parafuso, as duas partes podem ser separadas, portanto a conexão do parafuso é uma conexão destacável .
According to the force-bearing mode of the connection: ordinary and with reamed holes. According to the shape of the head: hexagonal head, round head, square head, countersunk head, etc. Among them, the hexagonal head is more commonly used. According to the thread type, it is divided into coarse thread and fine thread. The O tipo de rosca grossa não é exibido no logotipo do parafuso .
Parafusos ferroviáriosare divided into eight grades according to performance level: 3.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, and 12.9. Bolts above grade 8.8 (including grade 8.8) are made of low-carbon alloy steel or medium-carbon steel and are heat-treated (quenched + tempered), commonly known as high-strength bolts, and bolts below grade 8.8 (excluding grade 8.8) são comumente conhecidos como parafusos comuns.
Gnee Railis a high-tech enterprise focusing on the research and development, production and sales of railway products. The main products include rail buckle accessories, turnout connectors, fine adjustment parts, height adjustment pads, fishplates and fishbolts, frozen (bonded) joint splints, anchor bolts, turnout bolts, gauge blocks, adjustment plates, iron pads and other line-specific accessories and customized processing Partes . Sinceramente as boas -vindas a novos clientes para visitar, negociar negócios e cooperar!
