45#ukuqina kwentsimbi emva kokucinywa nokuqunjelwa

Ubunzima be-45 # intsimbi ecinyiweyo kunye neengxenye ezivuthayo emva kokucima kufuneka zifikelele kwi-HRC56 ~ 59, kwaye inokwenzeka yecandelo elikhulu lomnqamlezo liphantsi, kodwa ayikwazi ukuba ngaphantsi kwe-HRC48.

Ucinywe kwaye unomsindo we I-# # yentsimbi 45 # intsimbi yintsimbi yesakhiwo ephakathi kwekhabhoni kunye nokusebenza kakuhle okubandayo kunye nokutshisa, iipropati ezilungileyo zoomatshini, ixabiso eliphantsi kunye nemithombo ebanzi, ngoko isetyenziswa ngokubanzi. Ubuthathaka bayo obukhulu kukuba inobunzima obuphantsi, imilinganiselo emikhulu ye-cross-sectional kunye neemfuno eziphezulu zee-workpieces ezingafanelekanga ukusetyenziswa.

Ku

Ubushushu bokucima 45 # intsimbi A3 + (30 ~ 50) ℃. Kwintsebenzo yangempela, umda ophezulu uthathwa ngokubanzi. Ubushushu obuphezulu bokucima kunokukhawulezisa ukufudumeza kwendawo yokusebenza, ukunciphisa i-oxidation yomhlaba, kunye nokuphucula ukusebenza kakuhle. Ukuze i-homogenize i-austenite ye-workpiece, ixesha elaneleyo lokubamba liyafuneka. Ukuba inani langempela lesithando somlilo lifakwe likhulu, ixesha lokubamba lifuna ukwandiswa ngokufanelekileyo. Ngaphandle koko, kunokubakho ubunzima obaneleyo ngenxa yokufudumeza okungalinganiyo. Nangona kunjalo, ukuba ixesha lokubamba lide kakhulu, iinkozo ezirhabaxa kunye ne-decarburization enzulu ye-oxidative nayo iya kwenzeka.

Ku

Ukucima kunye nokuqunjelwa: Ukucima kunye nokufudumala kunyango lobushushu oluphindwe kabini lokucima kunye nokushisa okuphezulu, kwaye injongo yayo kukwenza i-workpiece ibe neepropati ezilungileyo ezibanzi zoomatshini. Intsimbi ecinyiweyo kunye neyomsindo ineendidi ezimbini: i-carbon quenched kunye ne- tempered steel kunye ne-alloy ecinyiweyo kunye nentsimbi epholileyo. Kungakhathaliseki ukuba i-carbon steel okanye i-alloy steel, umxholo wayo wekhabhoni ulawulwa ngokungqongqo. Ukuba umxholo wekhabhoni uphezulu kakhulu, amandla omsebenzi emva kokucima kunye nokufudumala kuphezulu, kodwa ukuqina akwanelanga. Ukuba umxholo wekhabhoni uphantsi kakhulu, ukuqina kuya kwanda kwaye amandla aya kuba anele.