Ibha ye-Stainless Steel Forgings eqina ngobudala
Inkcazo emfutshane:
Ukuqina kobudala, okwaziwa ngokuba kukuqina kobumanzi, yinkqubo yonyango lobushushu ephucula amandla kunye nokuqina kwee-alloys ezithile, kuquka intsimbi engagqwaliyo. Injongo yokuqina kobudala kukukhuthaza ukuhla kwee-small particles ngaphakathi kwe-stainless steel matrix, eqinisa izinto.
Ibha ye-Stainless Steel Forgings eQinisa Ubudala:
Ii-Forgings zizinto zesinyithi ezibunjwe ngenkqubo yokubumba, apho izinto zifudunyezwa zize zibethelelwe ngesando okanye zicinezelwe kwimo efunekayo. Ii-forgings zentsimbi engatyiwayo zihlala zikhethwa ngenxa yokuxhathisa kwazo ukugqwala, amandla, kunye nokuqina, nto leyo ezenza zifaneleke kwiintlobo ngeentlobo zezicelo, kubandakanya i-aerospace, ioyile kunye negesi, nokunye. I-forging efana ne-bar luhlobo oluthile lwesinyithi esibunjiweyo esihlala sinemilo ende, ethe tye, efana ne-bar okanye intonga. Ii-bar zihlala zisetyenziswa kwiintlobo ngeentlobo zezixhobo apho kufuneka ubude obuqhubekayo, obuthe tye bezinto, njengasekwakhiweni kwezakhiwo okanye njengezinto zokwenza izinto ezongezelelweyo.
Iinkcukacha zeBar ye-Age-Hardening Forgings:
| Ibanga | 630,631,632,634,635 |
| Umgangatho | I-ASTM A705 |
| Ububanzi | 100 – 500mm |
| Ubuchwepheshe | Yakha, ishushu iqengqekile |
| Ubude | Iimitha ezi-1 ukuya kwezi-6 |
| Unyango lobushushu | I-Soft Annealed, Isisombululo Esifakwe Kwi-Annealed, Esicinyiweyo Nesinomoya Ophantsi |
Ukwakhiwa kweekhemikhali ze-Forged Bar:
| Ibanga | C | Mn | P | S | Si | Cr | Ni | Mo | Al | Ti | Co |
| 630 | 0.07 | 1.0 | 0.040 | 0.030 | 1.0 | 15-17.5 | 3-5 | - | - | - | 3.0-5.0 |
| 631 | 0.09 | 1.0 | 0.040 | 0.030 | 1.0 | 16-18 | 6.5-7.75 | - | 0.75-1.5 | - | - |
| 632 | 0.09 | 1.0 | 0.040 | 0.030 | 1.0 | 14-16 | 6.5-7.75 | 2.0-3.0 | 0.75-1.5 | - | - |
| 634 | 0.10-0.15 | 0.50-1.25 | 0.040 | 0.030 | 0.5 | 15-16 | 4-5 | 2.5-3.25 | - | - | - |
| 635 | 0.08 | 1.0 | 0.040 | 0.030 | 1.0 | 16-17.5 | 6-7.5 | - | 0.40 | 0.40-1.20 | - |
Iipropati zeMechanical zeBar eziBunjiweyo:
| Uhlobo | Imeko | Amandla okuThamba ksi[MPa] | Amandla okuvelisa i-ksi[MPa] | Ukwandiswa % | Ukuqina kweRock-well C |
| 630 | H900 | 190[1310] | 170[1170] | 10 | 40 |
| H925 | 170[1170] | 155[1070] | 10 | 38 | |
| H1025 | 155[1070] | 145[1000] | 12 | 35 | |
| H1075 | 145[1000] | 125[860] | 13 | 32 | |
| H1100 | 140[965] | 115[795] | 14 | 31 | |
| H1150 | 135[930] | 105[725] | 16 | 28 | |
| H1150M | 115[795] | 75[520] | 18 | 24 | |
| 631 | RH950 | 185[1280] | 150[1030] | 6 | 41 |
| TH1050 | 170[1170] | 140[965] | 6 | 38 | |
| 632 | RH950 | 200[1380] | 175[1210] | 7 | - |
| TH1050 | 180[1240] | 160[1100] | 8 | - | |
| 634 | H1000 | 170[1170] | 155[1070] | 12 | 37 |
| 635 | H950 | 190[1310] | 170[1170] | 8 | 39 |
| H1000 | 180[1240] | 160[1100] | 8 | 37 | |
| H1050 | 170[1170] | 150[1035] | 10 | 35 |
Yintoni iNsimbi Engagqwaliyo yeNkunkuma?
Intsimbi engagqwaliyo yokuqiniswa kwemvula, edla ngokubizwa ngokuba yi-"PH stainless steel," luhlobo lwentsimbi engagqwaliyo edlula kwinkqubo ebizwa ngokuba yi-precipitation hardening okanye i-age hardening. Le nkqubo iphucula iipropati zoomatshini zezinto, ingakumbi amandla kunye nobunzima bazo. Eyona ntsimbi ingagqwaliyo yokuqiniswa kwemvula eqhelekileyo yi17-4 PH(ASTM A705 Grade 630), kodwa ezinye iintlobo, ezifana ne-15-5 PH kunye ne-13-8 PH, nazo ziwela kolu didi. Iintsimbi ezingenasici eziqinisa imvula zihlala zixutywe nezinto ezifana ne-chromium, i-nickel, ithusi, kwaye ngamanye amaxesha i-aluminium. Ukongezwa kwezi zinto zokudibanisa kukhuthaza ukwakheka kwe-precipitates ngexesha lenkqubo yonyango lobushushu.
Iqiniswa njani imvula yentsimbi engagqwaliyo?
Intsimbi engagqwaliyo yokuqinisa ukuguga ibandakanya inkqubo enamanyathelo amathathu. Ekuqaleni, izinto ziphathwa ngesisombululo sobushushu obuphezulu, apho iiathom ezinyibilikayo zinyibilika, zenze isisombululo sesigaba esinye. Oku kukhokelela ekwakhiweni kweenuclei ezininzi ezincinci okanye "ii-zones" kwisinyithi. Emva koko, ukupholisa ngokukhawuleza kwenzeka ngaphaya komda wokunyibilika, kudala isisombululo esiqinileyo esiqinileyo kwimeko enokuguquguquka. Kwinyathelo lokugqibela, isisombululo esixineneyo sitshiswa kubushushu obuphakathi, nto leyo ebangela imvula. Izinto zigcinwa kule meko de zibe ziqine. Ukuqina kobudala ngempumelelo kufuna ukuba ukwakheka kwe-alloy kube ngaphakathi komda wokunyibilika, ukuqinisekisa ukusebenza kakuhle kwenkqubo.
Ziziphi iintlobo zesinyithi esiqinileyo esivuthulukileyo?
Iintsimbi eziqinisa imvula ziza ngeentlobo ezahlukeneyo, nganye yenzelwe ukuhlangabezana neemfuno ezithile zokusebenza kunye nesicelo. Iintlobo eziqhelekileyo ziquka i-17-4 PH, i-15-5 PH, i-13-8 PH, i-17-7 PH, i-A-286, i-Custom 450, i-Custom 630 (17-4 PHMod), kunye neCarpenter Custom 455. Ezi ntsimbi zibonelela ngomxube wamandla aphezulu, ukumelana nokugqwala, kunye nobunzima, nto leyo eyenza ukuba zifaneleke kumashishini ahlukeneyo afana neenqwelo-moya, iimoto, ezonyango, kunye nokucubungula iikhemikhali. Ukukhethwa kwentsimbi eqinisa imvula kuxhomekeke kwizinto ezifana nendawo esetyenziswa kuyo, ukusebenza kwezinto, kunye neenkcukacha zokuvelisa.
Ukupakisha:
1. Ukupakisha kubaluleke kakhulu, ingakumbi xa impahla ithunyelwa kwamanye amazwe, apho impahla idlula kwiindlela ezahlukeneyo ukuze ifikelele kwindawo efanelekileyo, ngoko ke sibeka inkxalabo ekhethekileyo malunga nokupakisha.
2. I-Saky Steel ipakisha iimpahla zethu ngeendlela ezahlukeneyo ngokusekelwe kwiimveliso. Sipakisha iimveliso zethu ngeendlela ezininzi, ezinje,
