1. Songa ukuze uhlele injongo yalo mhlathi
H13 intsimbi yokufaisetyenziselwa ukwenza i-forging ifa kunye nomthwalo ophezulu wempembelelo, i-extrusion eshushu iyafa, i-forging echanekileyo iyafa;i-die-casting ifa ngenxa ye-aluminiyam, ubhedu kunye neengxube zazo.

Kukungeniswa kwe-H13 yokucima umoya ukuqinisa umsebenzi oshushu wokufa yintsimbi evela eUnited States.Iipropati kunye nokusetyenziswa kwayo ngokusisiseko ziyafana nezo zentsimbi ye-4Cr5MoSiV, kodwa ngenxa yomxholo wayo ophezulu we-vanadium, ukusebenza kwayo okuphakathi kobushushu (ama-600 degrees) kungcono kune-4Cr5MoSiV yentsimbi.Inqanaba lensimbi elimele kunye noluhlu olubanzi lokusetyenziswa kumsebenzi oshushu we-die steel.
2. Iimpawu
I-Electroslag yentsimbi enyibilikisiweyo, intsimbi inokuqina okuphezulu kunye nokumelana nokuqhekeka kwe-thermal, intsimbi iqulethe umxholo ophezulu wekhabhoni kunye ne-vanadium, ukumelana nokunxiba kakuhle, ukuqina okubuthathaka, kunye nokumelana nobushushu.Kumaqondo obushushu aphezulu, inamandla angcono kunye nokuqina, ukumelana nokunxiba okuphezulu kunye nokuqina, iipropathi ezigqibeleleyo zoomatshini kunye nokuzinza okuphezulu kokumelana nobushushu.
3. Ukwakhiwa kweekhemikhali zentsimbi
Intsimbi ye-H13 yintsimbi ye-C-Cr-Mo-Si-V, esetyenziswa kakhulu kwihlabathi.Ngelo xesha, abaphengululi abaninzi abavela kumazwe ahlukeneyo baye benza uphando olubanzi malunga nalo kwaye bahlola ukuphuculwa kokwakheka kweekhemikhali.Insimbi isetyenziswa ngokubanzi kwaye ineempawu ezibalaseleyo, ngokuyintloko inqunywe yikhemikhali yentsimbi.Ngokuqinisekileyo, izinto ezingcolileyo kwintsimbi kufuneka zincitshiswe.Ezinye iinkcukacha zibonisa ukuba xa i-Rm i-1550MPa, umxholo wesulfure wezinto eziphathekayo uyancitshiswa ukusuka kwi-0.005% ukuya kwi-0.003%, eya kwandisa ukuqina kwempembelelo malunga ne-13J.Ngokucacileyo, umgangatho we-NADCA 207-2003 uchaza ukuba umxholo wesulfure we-premium H13 yensimbi kufuneka ube ngaphantsi kwe-0.005%, ngelixa umxholo wesulfure ophezulu kufuneka ube ngaphantsi kwe-0.003%S kunye ne-0.015% P.Ukubunjwa kwensimbi ye-H13 kuhlalutywa ngezantsi.

I-Carbon: I-American AISI H13, i-UNS T20813, i-ASTM (uguqulelo lwamva nje) i-H13 kunye ne-FED QQ-T-570 H13 insimbi inomxholo wekhabhoni (0.32 ~ 0.45)%, eyona mxholo wekhabhoni wekhabhoni kubo bonke.Iintsimbi ze-H13.Banzi.Umxholo wekhabhoni we-German X40CrMoV5-1 kunye ne-1.2344 yi (0.37 ~ 0.43)%, kwaye uluhlu lwekhabhoni luncinci.NgesiJamani i-DIN17350, umxholo wekhabhoni we-X38CrMoV5-1 ngu (0.36 ~ 0.42)%.Umxholo wekhabhoni we-SKD 61 eJapan ngu (0.32 ~ 0.42)%.Umxholo wekhabhoni we-4Cr5MoSiV1 kunye ne-SM 4Cr5MoSiV1 kwilizwe lam i-GB / T 1299 kunye ne-YB / T 094 yi (0.32 ~ 0.42)% kunye (0.32 ~ 0.45)%, ezifanayo ne-SKD61 kunye ne-AISI H13, ngokulandelanayo.Ngokukodwa, kufuneka kucaciswe ukuba umxholo wekhabhoni we-H13 yensimbi kwiNorth American Die Casting Association NADCA 207-90, 207-97 kunye nemigangatho ye-207-2003 ichazwe njenge (0.37 ~ 0.42)%.

Insimbi ye-H13 equkethe i-5% Cr kufuneka ibe nokuqina okuphezulu, ngoko umxholo wayo we-C kufuneka ugcinwe kwinqanaba elenza inani elincinci le-alloy C compounds.U-Woodyatt no-Krauss babonise ukuba kwi-Fe-Cr-C ternary phase diagram kwi-870℃, indawo ye-H13 yensimbi ingcono kwi-junction ye-austenite A kunye (A + M3C + M7C3) imimandla emithathu.Umxholo ohambelana noC umalunga ne-0.4%.Umzobo uphinde waphawula ukunyuka kwexabiso le-C okanye i-Cr yokwandisa inani le-M7C3, kunye ne-A2 kunye ne-D2 yensimbi kunye nokuxhatshazwa okuphezulu kokuthelekisa.Kwakhona kubalulekile ukugcina umxholo ophantsi we-C ukwenza i-Ms point yentsimbi ithathe iqondo eliphezulu lobushushu (i-Ms ye-H13 yensimbi ngokuqhelekileyo ichazwa njenge-340 ℃), ukwenzela ukuba isinyithi sinokucinywa kwiqondo lokushisa.Fumana i-alloy C isakhiwo sekhompawundi ikakhulu iqulunqwe yi-martensite kunye nexabiso elincinci le-A eyintsalela kunye nentsalela yokusabalalisa iyunifomu, kwaye ufumane iyunifomu yesakhiwo se-martensite emva kokufudumala.Kuphephe ukuguqula kakhulu igcinwe austenite kwiqondo lobushushu ukusebenza ukuchaphazela ukusebenza okanye deformation workpiece.Ezi zixa ezincinci ze-austenite ezigciniweyo kufuneka zitshintshwe ngokupheleleyo kwiinkqubo ezimbini okanye ezintathu zokufudumala emva kokucima.Ngendlela, kucaciswe apha ukuba isakhiwo se-martensite esifunyenwe emva kokucima i-H13 yensimbi yi-lath M + i-flake encinci ye-flake M + inani elincinci le-residual A. I-alloy carbides enhle kakhulu iyancipha kwi-lath M emva kokufudumala.Abaphengululi basekhaya nabo baye benza umsebenzi othile