Metodu tat-test ta 'l-ebusija ta' kopertura protettiva ta 'unità li tiżżerżaq lineari
Kif tiskopri l-ebusija tal-qoxra protettiva tal-unità li tiżżerżaq lineari
Il-proprjetajiet tal-qoxra protettiva tal-unità li tiżżerżaq lineari jaffettwaw direttament il-kwalità tal-ipproċessar, u l-valur tal-ebusija huwa indiċi importanti li jiddetermina l-ipproċessar tal-ikkastjar.
1. Brinell hardness: Mainly used to determine the hardness of castings, forgings, non-ferrous metal parts, hot-rolled blanks and annealed parts, and the measurement range is ≯ HB450.
2. Rockwell hardness: HRA is mainly used for high-hardness specimens to determine the hardness of materials and surface hardness above HRC67, such as cemented carbide, nitrided steel, etc., and the measurement range is HRA>70. HRC jintuża prinċipalment biex tiddetermina l-ebusija tal-partijiet tal-azzar (bħal azzar tal-karbonju, azzar tal-għodda, azzar illigat, eċċ.) Wara t-tifi jew ittemprar, u l-firxa tal-kejl hija HRC2067.
3. Ebusija Vickers: użata biex tiddetermina l-ebusija ta 'partijiet irqaq u gwardji tal-binarji ta' gwida, u tista 'tintuża wkoll biex tiddetermina l-ebusija tal-ikkastjar tal-għodda tal-magni li jwebbsu l-wiċċ bħal carburizing, cyanidation, u nitriding.
