China Din7991 Hex Socket Countersink Screw Ibanga Carbon Steel Zic Plated Ibanga 8.8 Abakhiqizi nabathengisi

Din7991 Hex Socket Countersink Screw Ibanga Carbon Steel Zic Plated Ibanga 8.8 10.9

Incazelo emfushane:

Okujwayelekile: Din7991

Igama lomkhiqizo: Isikulufa se-Hex Socket Flat Head Screw

Amagama asemqoka: Din7991, Hex socket flat head screw, isikulufa sokubala

Usayizi: M3-M42

Izinto ezibonakalayo: 10b21, 35CRMO, 40CR

Ibanga elithe xaxa: 8.8, 10.9

Ukwelashwa okungaphezulu: I-Zinc Plated Emhlophe

Ubude bentambo: intambo ephelele / Ingxenye yentambo

Ukupakisha: Isikhwama / I-Carton / Case Wooden

Ezinye izici: Nikeza uphawu lwekhanda olwenziwe ngokwezifiso

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Ukufanisa

-SheshisayoImpendulo

-SheshisayoUkusho amazwi ashiwo ngomunye umuntu noma incwadi

-SheshisayoUkuhambisa

Ukulungele Ukuthumela Ukulethwa

I-10000 + SKU e-Warehouse

Sizibophezela ezintweni ze-RTS:

70% Izinto zilethwe kungakapheli izinsuku ezi-5

I-80% Izinto zilethwe kungakapheli izinsuku eziyi-7

90% Izinto zilethwekungakapheli izinsuku eziyi-10

Ama-oda we-Bulk, sicela uxhumane namakhasimende

d		M3	M4	M5	M6	M8	M10	M12	(M14)	M16	(M18)	I-M20	(M22)	M24
d
P	Iphimbo	0.5	0.7	0.8	1	I-1.25	1.5	1.75	2	2	2,5	2,5	2,5	3
α	tol. (+ 2)	I-90 °	I-90 °	I-90 °	I-90 °	I-90 °	I-90 °	I-90 °	I-90 °	I-90 °	I-90 °	I-90 °	60 °	60 °
b	L≤125mm	12	14	16	18	22	26	30	34	38	42	46	50	54
	125 <l ≤ 200	/	/	/	24	28	32	36	40	44	48	52	56	60
	L> 200	/	/	/	/	/	45	49	53	57	61	65	69	73
dk	UMax = ongokoqobo	6	8	10	12	16	20	24	27	30	33	36	36	39
dk	Uku	I-5.7	7.64	9.64	11.57	15.57	19.48	23.48	26.48	29.48	32.38	35.38	35.38	38.38
ds	UMax = ongokoqobo	3	4	5	6	8	10	12	14	16	18	20	22	24
ds	Uku	I-2.86	3.82	4.82	I-5.82	7.78	9.78	11.73	13.73	15.73	17.73	19.67	21.67	23.67
e	Uku	2.3	I-2.87	3.44	4.58	5.72	I-6.86	9.15	11.43	11.43	13.72	13.72	16	16
k	Umnciphikazi	1.7	2.3	2.8	3.3	4.4	5.5	6.5	7	7.5	8	8.5	13.1	14
s	-Nemibukona	2	2,5	3	4	5	6	8	10	10	12	12	14	14
	Uku	I-2.02	I-2.52	I-3.02	4.02	5.02	I-6.02	8.025	10.025	10.025	12.032	12.032	14.032	14.032
	Umnciphikazi	2.1	2.6	3.1	4.12	5.14	6.14	8.175	10.175	10.175	12.212	12.212	14.212	14.212
t	UMax = ongokoqobo	1.2	1.8	2.3	2,5	I-3.5	4.4	4.6	4.8	5.3	5.5	5.9	8.8	10.3
t	Uku	0.95	1.55	I-2.05	2.25	3.2	4.1	4.3	4.5	5	5.2	I-	8.44	9.87

Imininingwane yemininingwane

Ama-fasteners anamandla aphezulu azokhiqiza ubumnyama lapho egaywe. Dinga ukunakwa okukhethekile.

I-Hydrogen Embrittlement imvamisa ibonakala ngokubambezeleka kokuqhekeka ngaphansi kwengcindezi. Kube khona iziphethu zezimoto, ama-washers, ama-screws, iziphethu zephepha kanye nezinye izingxenye ezigayiwe, emahoreni ambalwa ngemuva komhlangano aphulwe, ingxenye ye-40% ~ 50%. Esezinhlelweni zokusebenzisa izingxenye ze-cadmium-plated zomkhiqizo okhethekile, kwakukhona ukuqhekeka kwe-batch crackuw, futhi inkinga kazwelonke yenzelwe okuxazululwa futhi inqubo eqinile ye-dehydrogenation yakhiwa. Ngaphezu kwalokho, kunezinye izindlela ze-hydrogen ezingabonisi into ebambezelekile ye-Fracture, njenge: Electroplating Hanger Hannger (wire yensimbi, ukungena kwensimbi) Ngenxa yezikhathi eziningi ze-electroplating kanye nokuthathwa kwe-hydrogen, kubukeka sengathi kusetshenziswa i-fold will zenzeke nge-brittle gracture phenomenon; Ummeli wesibhamu, ngemuva kwezikhathi eziningana ze-chroming, wawela phansi waphuka; Ezinye izingxenye ezicijile (ukucindezela okukhulu kwangaphakathi) kuzoqhekeka lapho kuthathwa. Lezi zingxenye zihlehliswe kakhulu futhi ziqhekeke ngaphandle kwengcindezi yangaphandle, engasakwazi ukusetshenziselwa ukubuyisela ubulukhuni bokuqala yi-dehydrogenation.

Lapho ukhula khona amandla abonakalayo, ukukhuthaza ukuzwela okukhulu kwe-hydrogen eMbrittlement. Lona umqondo oyisisekelo okufanele acaciswe ngochwepheshe bokwelashwa komhlaba lapho behlanganisa imininingwane yenqubo ye-electroplating yenqubo. Ama-Steel Anamandla Amandla we-Tensile σ we-σ we-105kg / mm2 edingwa amazinga aphesheya kufanele acindezelwe ekucindezelweni kwangaphambi kokuphola kanye nokuphenya kwe-dehydrogenation ukwelashwa okuthe xaxa. Imboni yezezindiza yaseFrance idinga ukwelashwa okuhambisanayo kwe-dehydrogenation ngenxa yezingxenye zensimbi nge-Revel Amandla we-Resse> 90kg / mm2.

Ngenxa yokuxhumana kahle phakathi kwamandla ensimbi nobulukhuni, kubonakala kahle futhi kulula ukwahlulela ukuzwela kokucabanga kwe-hydrogen ukuzwela kobulukhuni kunobulukhuni. Ngoba inqubo ephelele yokudweba nomshini wemishini kufanele imakwe ngobulukhuni bensimbi. E-electtroplating, sathola ukuthi ubunzima bensimbi ezungeze i-HRC38 baqala ukukhombisa ubungozi bokuqhekeka kwe-hydrogen eMbrittlement. Ezingxenyeni eziphakeme kune-HRC43, ama-dehydrogenation kufanele abhekwe ngemuva kokufaka ipuleti. Lapho ubulukhuni bumayelana ne-HRC60, ukwelashwa kwe-dehydrogenation kumele kwenziwe ngokushesha ngemuva kokwelashwa komhlaba, ngaphandle kwalokho izingxenye zensimbi ziyoqhekeka kungakapheli amahora ambalwa.