Welded bututu surface quenching da tempering zafi magani yawanci ana aiwatar da induction dumama ko harshen wuta.Babban ma'auni na fasaha sune taurin saman, taurin gida da ingantaccen zurfin Layer.Gwajin taurin na iya amfani da Vickers hardness tester, kuma zai iya amfani da Rockwell ko saman Rockwell.Zaɓin ƙarfin gwaji (ma'auni) yana da alaƙa da zurfin madaidaicin maɗauri mai ƙarfi da taurin farfajiyar bututu mai walda.Anan ya ƙunshi taurin guda uku.
Alamar alama
Chemical Properties: high zafin jiki juriya, low zafin jiki juriya, acid juriya, alkalinity, hadawan abu da iskar shaka juriya, da dai sauransu.;
Tsari aiki: filament mikewa, karaya dubawa, maimaita lankwasawa, baya lankwasawa, baya flattening, biyu-hanyar torsion, na'ura mai aiki da karfin ruwa gwajin, flaring gwajin, lankwasawa, crimping, flattening, zobe fadada, zobe mikewa, microscopy Organization, cupping gwajin, metallographic bincike, da dai sauransu;
Gwajin da ba mai lalacewa ba: Gwajin X-ray mara lalacewa, gwaji na lantarki na lantarki, ultrasonic, gwajin eddy na yanzu, gwajin zubar da ruwa na maganadisu, gwajin shiga, gwajin ƙwayar maganadisu;
Kayan aikin injiniya: ƙarfin ƙarfi, gwajin tasiri, ma'anar yawan amfanin ƙasa, elongation bayan karaya, raguwar yanki, alamar taurin (Rockwell hardness, Brinell hardness, Vickers hardness, Leeb hardness, Webster hardness);
Sauran abubuwa: tsarin metallographic, hadawa, decarburized Layer, ƙayyadaddun abun ciki na microstructure, lalata sanadin bincike, girman hatsi da ƙima mai ƙima, ƙaramin ƙarfi tsarin, lalata intergranular, superalloy microstructure, high zafin jiki metallographic tsarin jira.
Binciken kwatankwacin, gano kayan abu, nazarin gazawa, nazarin abubuwan da suka shafi, nazarin sinadarai

Binciken gazawa: nazarin karaya, nazarin lalata, da dai sauransu;

Elemental bincike: daidai ganewa da bincike na manganese, oxygen, nitrogen, carbon, sulfur, silicon, baƙin ƙarfe, aluminum, phosphorus, chromium, vanadium, titanium, jan karfe, cobalt, nickel, molybdenum, cerium, lanthanum a cikin karafa, gami da kayayyakinsu. , da bakin karfe , Calcium, magnesium, zinc, tin, antimony, arsenic da sauran abubuwa na karfe da abun ciki;