【摘要】 本文在研究电渣熔铸用渣、保护渣及焊接熔渣的粘度和凝固特征基础上,提出了一个区分“长渣”“短渣”的判据 R_min值:R_min=（t-t₀）³（1+5.302b²η²/（t-t₀）⁴）^3/2/2.3036η（2+2.303b/（t-t₀））并以 CaF₂、SiO₂作为典型“短渣”“长渣”,对所研究的熔渣进行分类。不同熔剂或熔渣的 R_min计算值对电渣重熔、保护浇铸及焊接的工艺过程有一定指导意义。更多还原

【Abstract】 Based on the study of relationship between viscosity and melting temperature （semispherepoint） for flux,ESR slag and protective slag,the R_min is raised to discriminate between“longslag”and“short slag”,R_min=(（t-t₀）³（1+5.302 b²η²/（t-t₀）⁴）^3/2/2.303bη（2+2.303 b/（t-t₀））)Using CaF₂ and SiO₂ as reference points of“short slag”and“long slag”respectively,theclassification of slags studied has been made.Calculation of R_min for flux or slag is of signifi-cance in welding,ESR and protective casting.更多还原