Ing antarane macem-macem paduan casting, baja tuang sing tahan nyandhang minangka baja paduan sing akeh digunakake. Wear-tahan cast baja utamané mbenakake resistance nyandhang sakacasting bajakanthi nambahake macem-macem unsur paduan, kayata mangan, kromium, karbon, lan liya-liyane, menyang paduan kasebut. Ing wektu sing padha, resistance nyandhang saka castings baja nyandhang-tahan uga gumantung ing cara perawatan panas digunakake deningpengecoranlan struktur casting.
Miturut karakteristik nyandhang beda, nyandhang casting baja bisa dipérang dadi nyandhang abrasive, nyandhang adhesive, nyandhang lemes, nyandhang karat lan nyandhang fretting. Casting baja tahan aus utamane digunakake inglapangan industrikanthi kahanan kerja sing rumit lan syarat kinerja mekanik sing dhuwur, kayata pertambangan, metalurgi,konstruksi, daya, petrokimia, konservasi banyu,tetanènlan industri transportasi. Casting baja tahan nganggo biasane digunakake ing kondisi abrasion kanthi beban impact tartamtu, kayata peralatan grinding, excavator, crusher, traktor, lsp.
Ing industri pengecoran, jinis baja cast tahan nyandhang sing umum digunakake kalebu baja mangan sing tahan nyandhang, baja kromium sing tahan nyandhang, baja tuang baja paduan rendah lan baja karbon tahan nyandhang. Ing RMC Foundry, baja tuang sing tahan nyandhang bisa ditindakake kanthi sawetara proses casting kalebupengecoran pasir ijo, pengecoran pasir dilapisi resin, pengecoran cetakan tanpa panggang, pengecoran investasi, pengecoran busa sing ilang lancasting vakum.
1) Baja Mangan Tahan Wear
Miturut isi unsur manganese beda, baja mangan tahan nyandhang kanggo casting utamané dipérang dadi baja cast tahan nyandhang manganese kurang, manganese medium mangan baja tahan nyandhang lan dhuwur mangan mangan tahan nyandhang baja cast. Wear-resistant manganese steel nduweni kateguhan dhuwur lan ora gampang pecah nalika digunakake. Ing wektu sing padha, nduweni sifat hardening kerja sing apik, saengga baja mangan sing tahan nyandhang cocok kanggo kondisi nyandhang abrasif.
Kelas baja mangan tahan aus sing umum digunakake kanggo pengecoran yaiku: M13 (Baja Hadfield), Mn5, Mn6, Mn7, Mn8, Mn17 ZG120Mn7Mo1, ZG120Mn13, ZG120Mn13Cr2, J9119, J91134, J91134, J91139, J91134, J91134, J91134, J91134, J91134, J91149, J91149, J91149, J91134, J91134, J91134, J91134, J91134, J91149, J91149, lsp.
2) Baja Chrome tahan aus
Baja kromium tahan nyandhang kanggo casting nyetel atose lan nyandhang resistance saka baja cast kanthi nambahake jumlah kromium sing cocok kanggo baja campuran. Nambah isi kromium ing baja karbon medium bisa nambah hardenability saka cast baja lan uga nambah kateguhan saka cast baja. Nambahake jumlah cilik saka molybdenum bisa luwih nambah hardenability saka cast steel. Cara perawatan panas saka baja kromium tahan nyandhang umume quenching suhu dhuwur + tempering suhu rendah. Sampeyan kudu nyatet sing minangka isi karbon saka nyandhang-tahan kromium baja mundhak sawayah-wayah, atose casting baja bakal nambah, nanging kateguhan bakal suda.
Kelas baja kromium sing umum digunakake kanggo casting yaiku: ZG30CrMo, ZG35CrMo, ZG40Cr, ZG40CrMo, ZG42CrMo, ZG50CrMo, lsp.
3) Wear-Tahan Low-alloy Cast Steel
Baja paduan rendah nuduhake baja paduan kanthi kandungan unsur paduan kurang saka 5%. Wiwit atose lan kateguhan saka baja cast kurang-alloy bisa diatur ing sawetara relatif gedhe, nyandhang-tahan baja cast kurang-alloy digunakake liyane lan liyane. Nalika milih logam casting lan cara perawatan panas, iku perlu kanggo comprehensively nimbang kekuatan, impact energi lan nyandhang resistance baja cast nyandhang-alloy kurang kanggo entuk efek paling becik. Unsur paduan umum ing baja tuang sing tahan nganggo paduan rendah kalebu molibdenum, kromium, mangan, nikel, lan silikon.
Kelas baja paduan rendah sing umum digunakake kanggo casting yaiku: ZG30Mn2Si, ZG30Mn2SiCr, ZG30CrMnSiMo, ZG30CrNiMo, ZG40CrNiMo, lsp.
4) Baja Karbon Tahan Wear
Ketahanan nyandhang saka baja karbon utamané diduweni dening hardening lumahing casting baja. Nalika isi karbon luwih saka 0,35%, hardening induksi lumahing biasane digunakake ing lumahing casting baja. Nalika isi karbon kurang saka 0,35%, casting baja karbon bisa carburized, nitrided utawa carbonitrided kanggo nambah resistance nyandhang sawijining.
Wektu kirim: Feb-02-2021