China DIN7991 Hex Socket Countersunk Screw Grade Carbon Steel Zinc Plated Grade 8.8 10.9 kaihanga me nga kaiwhakarato

DIN7991 Hex Socket Countersunk Screw Kōeke Waro Steel Zinc Whakakikoruatia Koeke 8.8 10.9 Whakaahua Whakaatu

DIN7991 Hex Socket Countersunk Screw Kōeke Waro Steel Zinc Whakakikorua Koeke 8.8 10.9

Whakaahuatanga Poto:

Paerewa: DIN7991

Ingoa Hua: Hex Socket Flat Head Screw

Kupu Matua: DIN7991, Hex socket flat head screw, Countersunk Screw

Rahi: M3-M42

Rauemi: 10B21, 35CrMo, 40Cr

Koeke Kaha: 8.8, 10.9

Maimoatanga Mata: White Zinc Plated

Te roa o te Miro: Miro Katoa/ Miro Hawhe

Taapiri: Peeke / Kaata / pouaka rakau

Ētahi atu Āhuatanga: Te tuku tohu mahunga kua whakaritea

Tukuna he imeera ki a matou

Taipitopito Hua

Tohu Hua

Whakaahuatanga

KAUPAPAWhakautu

KAUPAPAKorero

KAUPAPATukunga

RITE KI TE WHAKATAUTANGA

10000+ SKU kei roto i te whare putunga

Ka whakapau kaha matou mo nga taonga RTS:

70% nga taonga i tukuna i roto i nga ra 5

80% nga taonga i tukuna i roto i nga ra 7

90% nga taonga i tukunai roto i nga ra 10

Nga ota nui, tena koa whakapā atu ki te ratonga kaihoko

d		M3	M4	M5	M6	M8	M10	M12	(M14)	M16	(M18)	M20	(M22)	M24
d
P	Pitch	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	Max	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
	Max	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

Whakaahuatanga taipitopito

Ko nga toromoka kaha teitei ka whakaputa i te kirikiri ina piauau. Me aro motuhake.

Ko te kaha o te hauhautanga he tohu na te roa o te pakaru i raro i te ahotea. He puna motopaika, horoi, wiri, puna puna me etahi atu waahanga piauau, i roto i etahi haora i muri i te pakaru o te huihuinga, ko te wehenga pakaru o te 40% ~ 50%. I roto i te whakamahi i nga waahanga kua whakakikoruatia ki te cadmium o tetahi hua motuhake, ka pakaru te puranga, ka whakatauhia he raruraru matua o te motu, ka hangaia he tukanga whakaheke wai. I tua atu, i reira e te tahi mau hauwai embrittlement e kore e whakaatu i te ahua pakaru roa, penei: te iri hiko (waea maitai, waea parahi) na te maha o nga wa o te whakakikorua me te whakakikorua, he nui ake te kino o te urunga hauwai, he maha nga wa ka puta mai i roto i te whakamahi he kopaki ka puta nga ahuatanga pakaru pakaru; Ko te mandrel o te pu, he maha nga wa o te chroming, ka taka ki te whenua, ka pakaru; Ko etahi waahanga kua tineia (he ahotea nui o roto) ka pakaru i te wa e piro ana. Ko enei waahanga ka kaha te hauwai, ka ngatata me te kore he taumahatanga o waho, ka kore e taea te whakamahi ki te whakahoki mai i te pakaritanga taketake na roto i te whakahekenga wai.

Ko te teitei ake o te kaha rawa, ka nui ake te kaha o te hauwai. He ariā taketake tenei me whakamarama e nga tohunga hangarau maimoatanga mata i te wa e whakahiato ana i nga whakaritenga o te tukanga hiko. Ko nga tira me te kaha kaha σb> 105kg/mm2 e hiahiatia ana e nga paerewa o te ao, me tukuna ki te ahotea o mua i te whakakikorua me te maimoatanga whakaheke i muri i te whakakikorua. Ko te ahumahi rererangi French e hiahia ana kia rite ki te maimoatanga whakaheke wai mo nga waahanga rino me te kaha tuku σs>90kg/mm2.

Na te pai o nga reta i waenga i te kaha rino me te pakeke, he pai ake te mohio me te watea ki te whakatau i te kaha o te hauwai o te rauemi ma te pakeke atu i te kaha. Na te mea me tohu te tuhi hua tino pai me te mahi miihini ki te pakeke rino. I roto i te whakakikorua hiko, i kitea e matou ko te pakeke o te maitai huri noa i te HRC38 i timata ki te whakaatu i te tupono o te pakaru o te hauwai. Mo nga waahanga teitei ake i te HRC43, me whai whakaaro te whakahekenga wai i muri i te whakakikorua. A, no te pakeke e pā ana ki te HRC60, me whakahaere te maimoatanga dehydrogenation i muri tonu i te maimoatanga o te mata, ki te kore ka pakaru nga waahanga rino i roto i etahi haora.