Ubushinwa DIN7991 Hex Socket Countersunk Screw Grade Carbone Steel Zinc Yashyizwe mu cyiciro cya 8.8 10.9 abakora nabatanga ibicuruzwa |Hongji

DIN7991 Hex Socket Countersunk Screw Grade Carbone Steel Zinc Yashyizwe mucyiciro 8.8 10.9 Ishusho Yerekanwe

DIN7991 Hex Socket Countersunk Screw Icyiciro cya Carbone Steel Zinc Icyiciro cya 8.8 10.9

Ibisobanuro bigufi:

Bisanzwe: DIN7991

Izina ryibicuruzwa: Hex Socket Flat Umutwe

Amagambo y'ingenzi: DIN7991, Hex sock igororotse umutwe wumutwe, Countersunk

Ingano: M3-M42

Ibikoresho: 10B21, 35CrMo, 40Cr

Icyiciro cy'uburebure: 8.8, 10.9

Kuvura Ubuso: Zinc Yera Yashizweho

Uburebure bwinsanganyamatsiko: Urudodo rwuzuye / Igice cyumutwe

Gupakira: Umufuka / Ikarito / Ikibaho

Ibindi biranga: Tanga ikimenyetso cyihariye

Ohereza imeri kuri twe

Ibicuruzwa birambuye

Ibicuruzwa

Ibisobanuro

IKIBAZOIgisubizo

IKIBAZOAmagambo

IKIBAZOGutanga

WITEGURE KUGENDERWA

10000+ SKU mu bubiko

Twiyemeje kubintu bya RTS:

70% ibintu byatanzwe mu minsi 5

80% ibintu byatanzwe mu minsi 7

90% ibintu byatanzwemu minsi 10

Ibicuruzwa byinshi, nyamuneka hamagara serivisi zabakiriya

d		M3	M4	M5	M6	M8	M10	M12	(M14)	M16	(M18)	M20	(M22)	M24
d
P	Ikibanza	0.5	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5	2.5	3
α	tol. (+ 2)	90 °	90 °	90 °	90 °	90 °	90 °	90 °	90 °	90 °	90 °	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	Max = Nominal	6	8	10	12	16	20	24	27	30	33	36	36	39
dk	Min	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	Max = Nominal	3	4	5	6	8	10	12	14	16	18	20	22	24
ds	Min	2.86	3.82	4.82	5.82	7.78	9.78	11.73	13.73	15.73	17.73	19.67	21.67	23.67
e	Min	2.3	2.87	3.44	4.58	5.72	6.86	9.15	11.43	11.43	13.72	13.72	16	16
k	Icyiza	1.7	2.3	2.8	3.3	4.4	5.5	6.5	7	7.5	8	8.5	13.1	14
s	Nominal	2	2.5	3	4	5	6	8	10	10	12	12	14	14
	Min	2.02	2.52	3.02	4.02	5.02	6.02	8.025	10.025	10.025	12.032	12.032	14.032	14.032
	Icyiza	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	Max = Nominal	1.2	1.8	2.3	2.5	3.5	4.4	4.6	4.8	5.3	5.5	5.9	8.8	10.3
t	Min	0.95	1.55	2.05	2.25	3.2	4.1	4.3	4.5	5	5.2	5.6	8.44	9.87

Ibisobanuro birambuye

Imbaraga zikomeye zifatika zizatanga crispness mugihe zishizwemo.Ukeneye kwitabwaho bidasanzwe.

Kwinjiza hydrogène mubisanzwe birangwa no gutinda kuvunika mukibazo.Habayeho amasoko yimodoka, koza, imashini, amasoko yamashanyarazi nibindi bice bya galvanis, mumasaha make nyuma yinteko imaze gucika, igipimo cyo kuvunika cya 40% ~ 50%.Muri gahunda yo gukoresha ibice byometse kuri kadmium yibicuruzwa bidasanzwe, habaye kuvunika ibice, kandi ikibazo cyingenzi cyigihugu cyakemutse kandi hashyirwaho uburyo bukomeye bwo kubura umwuma.Byongeye kandi, hari hydrogène yinjizwamo ntabwo yerekana ibintu byatinze kuvunika, nka: amashanyarazi ya elegitoronike (insinga z'icyuma, insinga z'umuringa) bitewe ninshuro nyinshi zo gufata amashanyarazi no gutoragura, hydrogene yinjira birakomeye, akenshi bigaragara mugukoresha inshuro bibaho kuvunika kuvunika;Mandel yimbunda, nyuma yinshuro nyinshi za chroming, yaguye hasi iravunika;Ibice bimwe byazimye (stress nini y'imbere) bizacika mugihe cyo gutoragura.Ibi bice ni hydrogène cyane kandi biravunika nta guhangayikishwa n’inyuma, bitagishobora gukoreshwa mu kugarura ubukana bwumwimerere hakoreshejwe dehydrogenation.

Iyo imbaraga zifatika zingana, niko hydrogène yinjira cyane.Iki nigitekerezo cyibanze kigomba gusobanurwa nabatekinisiye bavura hejuru mugihe bategura uburyo bwa electroplating process.Ibyuma bifite imbaraga zingana σb> 105kg / mm2 bisabwa nubuziranenge mpuzamahanga bigomba gukorerwa imihangayiko mbere yo kuvura no kuvura dehydrogenation nyuma yisahani.Inganda z’indege z’Abafaransa zisaba kuvura dehydrogenation ijyanye n’ibice byibyuma bifite imbaraga σs> 90kg / mm2.

Bitewe no kwandikirana kwiza hagati yingufu zicyuma nubukomere, biroroshye kandi byoroshye gucira urubanza hydrogène embrittlement sensibilité yibintu ukoresheje ubukana kuruta imbaraga.Kuberako ibicuruzwa byiza byo gushushanya no gutunganya bigomba kurangwa nicyuma gikomeye.Muri electroplating, twasanze ubukana bwibyuma hafi ya HRC38 bwatangiye kwerekana ibyago byo kuvunika hydrogène.Kubice birenze HRC43, dehydrogenation igomba gutekerezwa nyuma yo kuyisiga.Iyo ubukana buri hafi ya HRC60, kuvura dehydrogenation bigomba gukorwa ako kanya nyuma yo kuvurwa hejuru, bitabaye ibyo ibice byibyuma bikavunika mumasaha make.