Ishidi lensimbi eligoqiwe elingu-20Cr

I-GB 20Cr alloy Steel iyinsimbi yekhwalithi ephezulu Ecinyiwe ne-Tempered Alloy Structural, Ngeyekhwalithi ephezulu yekhabhoni ephansi,i-Low alloy chromium, i-molybdenum, i-nickel case hardening steel. Uwoyela Ocinyiwe Nokuqina Okuqinile kungu-28-34 HRc. I-GB 20Cr steel Ukulethwa kwe-Annealing kuba lukhuni ngaphansi kuka-250HB.20Cr Ngobubanzi obuphansi bekhabhoni yokuqukethwe, Ngakho-ke i-GB 20Cr ingxubevange yensimbi inokushisela okuhle.

Ukucaciswa okulingana kwensimbi ye-GB 20Cr ingxubevange yensimbi: ASTM A29/A29M, DIN EN 10083/3, JIS G4053 kanye ne-GB/T 3077. I-GB 20Cr elingana nebha yensimbi eyindilinga kanye nemigoqo eyisicaba ingasikwa ngosayizi abadingekayo. Insimbi yaseChina engu-20Cr eshisayo egoqiwe futhi ibha yensimbi ebunjiwe nayo inganikezwa, inikeze ibha yensimbi yensimbi yekhwalithi ephezulu yokunemba ephansi ekubekezeleleni kwakho okudingekayo. Imigoqo yensimbi ye-GB 20Cr elingana nensimbi inikezwa ngamajamo ayindilinga, ayizikwele neziyisicaba.
I-GB 20Cr alloy Steel iyinsimbi yeStructural Quenched and Tempered Alloy Structural steel. Kungokwekhwalithi ephezulu yekhabhoni ephansi, i-Low alloy chromium, i-molybdenum, insimbi eqinile ye-nickel case. Uwoyela Ocinyiwe & Oqinile GB 20Cr Ukuqina Kwensimbi kungu-28-34 HRc. Ukulethwa kwe-GB 20Cr steel Annealing kuyaqina ngaphansi kuka-250HB. Ngebanga eliphansi lokuqukethwe kwekhabhoni, okulinganayo kwensimbi ye-GB 20Cr alloy kunokushisela okuhle.
Ibha yensimbi efojiwe ye-GB 20Cr kanye nensimbi egoqiwe eshisayo isetshenziswa kabanzi ezinhlobonhlobo zezinhlelo zokusebenza ezisetshenziswa ezimbonini zezimoto nezobunjiniyela zabanikazi bamathuluzi nezinye izinto ezinjalo. Okusetshenziswa kakhulu ekwakhiweni kwesidingo kuphezulu, ukuqina kokugqokwa kwenhliziyo, ngaphansi kwesigaba esingaphansi kwama-30 mm noma izingxenye ezincane ze-carburized zomumo oyinkimbinkimbi nomthwalo (ukucisha uwoyela), njenge: igiya lokudlulisela, i-gear shaft, i-CAM, isibungu, i-piston. iphini, i-claw clutch, njll

Uma iqhathaniswa nensimbi engu-15Cr, inamandla aphakeme nokuqina. Ububanzi obuqinile bokuqina emafutheni bufinyelela ku-4-22mm, futhi ububanzi obuqinile bokuqina emanzini bufinyelela ku-11-40mm, kodwa ukuqina kwawo akulungile. Kukhona ukuthambekela kokukhula okusanhlamvu, futhi ukucisha ngokuqondile ekupholiseni kunomthelela omkhulu ekuqineni komthelela. Ngakho-ke, ngemva kokungcwatshwa kwe-carburizing, ukucinywa kwesibili kuyadingeka ukuze kuthuthukiswe ukuqina kwengxenye yomgogodla ngaphandle kokuqina kwentukuthelo; insimbi ine-plasticity ephezulu ebandayo futhi ingadonswa ezimeni ezibandayo. ; I-Machinability ilungile ngaphansi kokushisa okuphezulu okujwayelekile noma ukucisha kanye nesimo sokushisa, kodwa kubi ngemva kokucwiliswa; I-20Cr iyi-pearlite, ene-weldability enhle, ngokuvamile ayidingi ukwelashwa okushisa ngemva kokushisela, kodwa izingxenye ezinogqinsi olungaphezu kuka-15mm zidinga ukushisisa ngaphambi kokushisela Uma ifinyelela ku-100℃ 150℃, ukwelashwa kokushisisa akudingeki ngemva kokushisela.

Ishidi lensimbi eligoqiwe elingu-20Cr elishisayo

Ukwakhiwa Kwekhemikhali (%)
Ibanga Lensimbi	C	Si	UMn	P	S	Cr	Ni	Cu
20Kr	0.18～0.24	0.17～0.37	0.50～0.80	≤0.035	≤0.035	0.70～1.00	≤0.030	≤0.30

Izakhiwo zemishini

Amandla okukhiqiza σs/MPa (>=)	Amandla okuqina σb/MPa (>=)	Ukwelula δ5/% (>=)	Ukuncishiswa kwe indawo ψ/% (>=)	Umthelela amunca amandla Aku2/J (>=)	Ubulukhuni HBS 100/3000 ubuningi
≧540	≧835	≧10	≧40	≧47	≦179

Ilingana Nensimbi Yokwakheka Kwengxube ye-20Cr

USA	EJalimane	China	Japan	France	ENgilandi	Italy	Poland	ISO	E-Austria	eSweden	Spain
I-ASTM/AISI/UNS/SAE	I-DIN,WNr	GB	I-JIS	AFNOR	BS	I-UNI	PN	ISO	I-ONORM	SS	UNE
5120 / G51200	20Cr4 / 1.7027	20Kr	I-SCr420	18C3	527A20			20Kr4

Ukwelashwa Ukushisa Okuhlobene

• Ukufakwa kwensimbi yesakhiwo esingu-20Cr Alloy

Kushisisa kancane ku-850 ℃ futhi uvumele izikhathi ezanele, vumela insimbi ukuthi ifudunyezwe kahle, Bese upholisa kancane esithandweni. Insimbi engu-20Cr ingxubevange izothola MAX 250 HB (ukuqina kweBrinell).

• Ukuqina kwe-GB Alloy structural steel 20Cr

Ukucima kokuqala kushisiswe kancane kuya ku-880 ° C, Bese kuthi ngemva kokucwiliswa okwanele kulokhu kushisa kucime emafutheni noma emanzini. Thuthukisa ngokushesha lapho amathuluzi efinyelela izinga lokushisa legumbi. Okwesibili ukucima ukushisa ku-780-820 ° C, bese ucisha emafutheni noma emanzini.

• Ukushisa kwensimbi ye-20Cr Alloy structural

Shisisa ufike ku-20°C, bese upholisa emanzini noma emafutheni.ubunzima bokulethwa obujwayelekile 179HB Min.

Izinhlelo zokusebenza

Insimbi ye-GB 20Cr isetshenziswa kabanzi ezinhlobonhlobo zezinhlelo ezisetshenziswa ezimbonini zezimoto nezobunjiniyela kubanikazi bamathuluzi nezinye izinto ezinjalo. Okusetshenziswa kakhulu ekwakhiweni kwesidingo kuphezulu, ukuqina kokugqokwa kwenhliziyo, ngaphansi kwesigaba esingaphansi kwama-30 mm noma izingxenye ezincane ze-carburized zomumo oyinkimbinkimbi nomthwalo (ukucisha uwoyela), njenge: igiya lokudlulisela, i-gear shaft, i-CAM, isibungu, i-piston. iphini, i-claw clutch, njll.; Ukuze uthole ukuguqulwa kokwelashwa kokushisa kanye nezingxenye ezimelana nokuhuzuka okuphezulu, kufanele kube ukucisha imvamisa ephezulu ngemuva kokungcwatshwa kwe-carburizing, njenge-modulus ingaphansi kuka-3 wegiya, i-shaft, i-spline shaft, njll. Le nsimbi ingasetshenziswa esimweni esicishiwe nesithambile futhi esetshenziswa ekwakhiweni komthwalo omkhulu nophakathi ngaphansi komthelela ezingxenyeni zakhe zokusebenza, lolu hlobo lwensimbi lungasetshenziswa futhi njengensimbi yokucisha insimbi ye-carbon martensite, okwandisa amandla okukhiqiza insimbi namandla aqinile anda (cishe izikhathi ezingu-1.5 ~ 1.7). Izinhlelo zokusebenza ezijwayelekile ezifana nemizimba yama-valve, amaphampu nokufakwa, i-Shaft, umthwalo omkhulu wamasondo, amabhawodi, amabhawodi anamakhanda akabili, amagiya, njll.

Usayizi ovamile nokubekezelelana

Ibha eyindilinga yensimbi: Ububanzi Ø 5mm – 3000mm

Ipuleti lensimbi: Ukuqina 5mm - 3000mm x Ububanzi 100mm - 3500mm

Ibha yensimbi eyiHexagonal: Hex 5mm – 105mm

Amanye ama-20Cr awakacacisi usayizi, pls xhumana nethimba lethu lezentengiso elinolwazi.

Iyacubungula

Ibha eyindilinga yensimbi ye-GB 20Cr nezingxenye eziyisicaba zingasikwa zibe osayizi abadingekayo. Ibha ephansi yensimbi engu-20Cr ingxubevange nayo ingahlinzekwa, inikeze ibha yensimbi yensimbi yensimbi enembayo yekhwalithi ephezulu ekubekezeleni kwakho okudingekile. I-GB 20Cr steel iyatholakala futhi njengeGround Flat Stock / Gauge Plate, ngosayizi abajwayelekile nabangejwayelekile.