Ngokwe-GB/T9711.1 yeemfuno zokusebenza kombhobho wentsimbi, ngokweqondo lobushushu elahlukileyo, inokwahlulwa ngokwezi ntlobo zilandelayo zobushushu:
[1] Ubushushu obuphantsi (150-250 degrees)
I-microstructure efunyenwe ngobushushu obuphantsi bokushisa i-martensite epholileyo.Injongo yalo kukunciphisa uxinzelelo lokucima kunye nokunyanzeliswa kwentsimbi eqinile kwisiseko sokugcina ubunzima bayo obuphezulu kunye nokumelana nokugqoka okuphezulu, ukwenzela ukuba ugweme ukutshatyalaliswa okanye ukulimala kwangaphambili ngexesha lokusetyenziswa.Isetyenziselwa ikakhulu kuzo zonke iintlobo zezixhobo zokusika i-carbon ephezulu, izixhobo zokulinganisa, i-GB/T9711.1 yombhobho wentsimbi yombhobho, iibheringi eziqengqelekayo kunye neenxalenye ze-carburizing, njl.
[2] Ubushushu obuphakathi (250-500 degrees)
I-microstructure efunyenwe ngobushushu obuphakathi yi-trostite epholileyo.Injongo kukufumana amandla esivuno esiphezulu, umda we-elastic kunye nokuqina okuphezulu.Ke ngoko, isetyenziswa ikakhulu kuzo zonke iintlobo ze-GB/T9711.1 yombhobho wentsimbi yombhobho kunye nonyango lokungunda olushushu, emva kokuqina kobushushu ngokuqhelekileyo yi-HRC35-50.
[3] Ubushushu obuphezulu (500-650 degrees)
I-microstructure efunyenwe ngokunyuka kobushushu obuphezulu i-tendered sortensite.Ngokuqhelekileyo, unyango olushushu oludityaniswe nokucima kunye nokuvutha kubizwa ngokuba yi-quenching kunye nokuvutha.Injongo yalo kukufumana iimpawu ezingcono zoomatshini bokuqina, ukuqina, iplastiki kunye nokuqina.Ngoko ke, isetyenziswe ngokubanzi kwiimoto, i-GB/T9711.1 ipayipi yensimbi yombhobho, izixhobo zoomatshini kunye nezinye iindawo ezibalulekileyo zesakhiwo, ezifana nentonga yokudibanisa, i-bolt, i-gear kunye ne-shaft.Ubulukhuni emva kobushushu ngokuqhelekileyo yi-HB200-330.
Umgangatho
API SPEC 5L -- American Petroleum Institute Standard
I-GB/T9711 -- umgangatho weSizwe waseTshayina
Usebenzisa
Isetyenziselwa i-oksijini, amanzi kunye ne-oyile yokuhambisa umbhobho kwi-petroleum kunye negesi yendalo
Imveliso ephambili yamabakala emibhobho yentsimbi:
B, X42, X52, X60, X65, X70 L245 L290 L320 L360 L390 L450 L485
Iimpawu zoomatshini
| Umgangatho | Inqanaba leMveliso | IBanga leNsimbi | Amandla eSivuno (min), Mpa | Amandla Okuqina (MPa) |
| API 5L GB/T9711.2 | PSL 1 | A okanye L210 | 210 | 335 |
| B okanye L245 | 245 | 415 | ||
| x42 okanye L290 | 290 | 415 | ||
| X46 okanye L320 | 320 | 435 | ||
| X52 okanye L360 | 360 | 460 | ||
| X56 okanye L390 | 390 | 490 | ||
| X60 okanye L415 | 415 | 520 | ||
| X70 | 483 | 565 | ||
| PSL 2 | BR okanye L245R | 245~450 | 415~760 | |
| X42R okanye L290R | 290~495 | 415~760 | ||
| BN okanye L245N | 245~450 | 415~760 | ||
| X42N okanye L290N | 290~495 | 415~760 | ||
| X46N okanye L320N | 320~525 | 435~760 | ||
| X52N okanye L360N | 360~530 | 460~760 | ||
| I-X56N okanye i-L390N | 390~545 | 490~760 | ||
| X60N okanye L415N | 415~565 | 520~760 | ||
| X65N okanye L450N | 425~566 | 525~760 | ||
| X70 okanye L480 | 484~565 | 565~768 | ||
| X80 | 552~690 | 621~827 |
Itheyibhile yeekhemikhali Elements kwipayipi
| Inqanaba leMveliso | IBanga leNsimbi | Ukuqulunqwa kwemichiza, % | ||||||||
| C | Mn | P | S | Kwaye | IN | Nb | Of | CEpcm | ||
| PSL 1 | B okanye L245 | ≤0.28 | ≤1.20 | ≤0.030 | ≤0.030 | - | - | - | - | - |
| x42 okanye L290 | ≤0.28 | ≤1.30 | ≤0.030 | ≤0.030 | - | - | - | - | - | |
| X46 okanye L320 | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - | |
| X52 okanye L360 | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - | |
| X56 okanye L390 | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - | |
| X60 okanye L415 | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - | |
| X70 | ≤0.28 | ≤1.40 | ≤0.030 | ≤0.030 | - | - | - | - | - | |
| PSL 2 | BR okanye L245R | ≤0.24 | ≤1.20 | ≤0.025 | ≤0.015 | ≤0.40 | c | c | ≤0.04 | ≤0.25 |
| X42R okanye L290R | ≤0.24 | ≤1.20 | ≤0.025 | ≤0.015 | ≤0.40 | ≤0.06 | ≤0.05 | ≤0.04 | ≤0.25 | |
| BN okanye L245N | ≤0.24 | ≤1.20 | ≤0.025 | ≤0.015 | ≤0.40 | c | c | ≤0.04 | ≤0.25 | |
| X42N okanye L290N | ≤0.24 | ≤1.30 | ≤0.025 | ≤0.015 | ≤0.40 | ≤0.06 | ≤0.05 | ≤0.04 | ≤0.25 | |
| X46N okanye L320N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.40 | ≤0.07 | ≤0.05 | ≤0.04 | ≤0.25 | |
| X52N okanye L360N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | ≤0.25 | |
| I-X56N okanye i-L390N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | ≤0.25 | |
| X60N okanye L415N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | - | |
| X65N okanye L450N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | - | |
| X70N | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | - | |
| X80 | ≤0.24 | ≤1.40 | ≤0.025 | ≤0.015 | ≤0.45 | ≤0.10 | ≤0.05 | ≤0.04 | ||
Ixesha lokuposa: May-23-2022