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Letlapa la tšepe la ASTM A514 Kereiti ea T
Letlapa la tšepe la ASTM A514 Kereiti ea T
Letlapa la tšepe la ASTM A514 Kereiti ea T
Letlapa la tšepe la ASTM A514 Kereiti ea T

Letlapa la tšepe la ASTM A514 Kereiti ea T

ASTM A514 e sebelisoa haholo joalo ka tšepe ea meralo ka har'a li-cranes le metjhini e meholo e boima. A514 ke mofuta o itseng oa tšepe e matla e phahameng, e timang le e halefileng ea tšepe ea alloy, e nang le matla a ho hlahisa 100,000 psi (100 ksi kapa hoo e ka bang 700 MPa).
Lintlha tsa sehlahisoa

ASTM A514 e sebelisoa haholo joalo ka tšepe ea meralo ka har'a li-cranes le metjhini e meholo e boima.

A514 ke mofuta o itseng oa tšepe e matla e phahameng, e timang le e halefileng ea tšepe ea alloy, e nang le matla a ho hlahisa 100,000 psi (100 ksi kapa hoo e ka bang 700 MPa). Lebitso la khoebo la ArcelorMittal ke T-1. A514 e sebelisoa haholo joalo ka tšepe ea moaho bakeng sa kaho ea moaho. A517 ke motsoako o amanang haufi-ufi o sebelisetsoang ho hlahisa likepe tsa khatello e matla haholo.

Ona ke maemo a behiloeng ke mokhatlo oa litekanyetso oa ASTM International, mokhatlo oa boithaopo oa ntlafatso ea maemo o behang litekanyetso tsa tekheniki bakeng sa thepa, lihlahisoa, litsamaiso le lits'ebeletso.

A514
Matla a ho kotuloa a A514 alloys a hlalosoa e le bonyane 100 ksi (689 MPa) bakeng sa botenya bo fihlang ho 2.5 inches (63.5 mm) poleiti e teteaneng, le bonyane 110 ksi (758 MPa) matla a ho qetela, a nang le mefuta e mengata e boletsoeng 110–130 ksi (758–896 MPa). Lipoleiti tse tlohang ho 2.5 ho isa ho 6.0 inches (63.5 ho 152.4 mm) li na le matla a boletsoeng a 90 ksi (621 MPa) (kotulo) le 100-130 ksi (689-896 MPa) (mafelelong).

A517
A517 tšepe e na le matla a lekanang a ho kotuloa, empa matla a ho qetela a 115–135 ksi (793–931 MPa) bakeng sa botenya ba 2.5 inches (63.5 mm) le 105–135 ksi (724–931 MPa) bakeng sa botenya ba 2.5 ho isa ho 6.0 lisenthimithara (63.5 ho 152.4 limilimithara).

Tšebeliso
Litšepe tsa A514 li sebelisoa moo ho hlokahalang tšepe e chesehang, e machable, e matla haholo ho boloka boima ba 'mele kapa ho fihlela litlhoko tsa mantlha tsa matla. Hangata e sebelisoa e le tšepe ea mohaho mohahong oa mohaho, li-crane, kapa mechine e meng e meholo e tšehetsang meroalo e phahameng.

Ntle le moo, litšepe tsa A514 li hlalositsoe ke litekanyetso tsa sesole (ETL 18-11) bakeng sa ho sebelisoa e le li-baffle tsa lithunya tse nyane le lipoleiti tsa deflector.

Sebopeho sa lik'hemik'hale le thepa ea Mechanical

Thepa ea mochini bakeng sa tšepe ea alloy ea A514GrT:

Botenya (mm) Matla a tlhahiso (≥Mpa) Tensile strength (Mpa) Elongation ka ≥,%
50 limilimithara
T≤65 690 760-895 18
65 620 690-895 16

Motsoako oa lik'hemik'hale bakeng sa tšepe ea alloy ea A514GrT (Heat Analysis Max%)

Lintho tse ka sehloohong tsa lik'hemik'hale tsa A514GrT
C Si Mong P S B Mo V
0.08-0.14 0.40-0.60 1.20-1.50 0.035 0.020 0.001-0.005 0.45-0.60 0.03-0.08

Litlhoko tsa Tekheniki le Litšebeletso tse Eketsehileng:

  • Teko e phahameng ea tsitsipano
  • Teko e amang mocheso o tlase
  • Kalafo e etswang ka morao ho welded mocheso (PWHT)
  • Setifikeiti sa tlhahlobo sa Orginal Mill se fanoeng tlas'a EN 10204 FORMAT 3.1/3.2
  • Ha tšepe ea Cooper e hlalositsoe bakeng sa A709 Gr36, litaba tsa Cu≥0.20%
  • Ho thunya le ho penta, ho seha le ho cheselletsa ho latela litlhoko tsa mosebelisi
  • Botenya bo boima (3-inch kapa botenya) bo fumaneha litsing tse ngata tsa kabo ea Leeco Steel.
  • E fumaneha ka limaraka tse tloaelehileng: 36, 50 le 50W.
  • E fumaneha ka limaraka tse sebetsang hantle haholo: HPS 50W le HPS 70W.
  • Bareki ba ka hlakisa limaraka tsa A709 ho fihlela tlhoko ea tlhahlobo ea Charpy bakeng sa libaka le boemo ba leholimo bo itseng.
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