I-China ASME B18.2.1 UNC Hex Bolt Ibanga lesi-5 Usayizi Oyintshi Ye-Oxide Emnyama 1/2-13 abakhiqizi nabaphakeli |Hongji

I-ASME B18.2.1 I-UNC Hex Bolt Ibanga 5 Usayizi Weyintshi Le-Oxide Emnyama 1/2-13 Isithombe Esifakiwe

ASME B18.2.1 UNC Hex Bolt Ibanga lesi-5 Usayizi Intshi Ye-Oxide Emnyama 1/2-13

Incazelo emfushane:

Izinga: ASME B18.2.1

Igama Lomkhiqizo: I-UNC Hex Head Bolt Black Oxide

Amagama Abalulekile: ASME B18.2.1, UNC, A307

Usayizi: 1/4″-2″

Material: 10B21, 35K, 45# insimbi

Ibanga Lokuqina: Ibanga lesi-5, iBanga lesi-8

Ukwelashwa kwendawo: I-Black oxide

Ubude Bomucu: Intambo Egcwele/Uhhafu

Uhlobo Lomucu: Okumahhadlahhadla/Kuhle

Ukupakisha: Ikhathoni/Iphalethi

Ezinye izici: Nikeza umaki wekhanda owenziwe ngezifiso

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Incazelo

SHESHAImpendulo

SHESHAIkhotheshini

SHESHAUkulethwa

ILUNGELE UKULETHWA NGOMKHUMBA

10000+ I-SKU endaweni yokugcina impahla

Sizibophezela ezintweni ze-RTS:

70% izinto ezilethiwe ezinsukwini ezi-5

80% izinto ezilethiwe phakathi kwezinsuku ezingu-7

90% izinto ezilethiwephakathi kwezinsuku eziyi-10

Ama-oda amaningi, sicela uxhumane nesevisi yamakhasimende

Sicela usithinte ukuze uthole ulwazi olwengeziwe, njengesisindo, imininingwane yokupakisha, uhlu lwamanani, nokunye.

I-Dia/d		1/4	5/16	3/8	7/16	1/2	5/8	3/4	7/8	1	1-1/8	1-1/4	1-3/8	1-1/2
PP	I-UNC	20	18	16	14	13	11	10	9	8	7	7	6	6
	UNF	28	24	24	20	20	18	16	14	12	12	12	12	12
	8-UN	-	-	-	-	-	-	-	-	-	8	8	8	8
d_s	ubuningi	0.26	0.324	0.388	0.452	0.515	0.642	0.768	0.895	1.022	1.149	1.277	1.404	1.531
d_s	imiz	0.237	0.298	0.36	0.421	0.482	0.605	0.729	0.852	0.976	1.098	1.223	1.345	1.47
s	ubuningi	0.438	0.5	0.562	0.625	0.75	0.938	1.125	1.312	1.5	1.688	1.875	2.062	2.25
s	imiz	0.425	0.484	0.544	0.603	0.725	0.906	1.088	1.269	1.45	1.631	1.812	1.994	2.175
e	ubuningi	0.505	0.577	0.65	0.722	0.866	1.083	1.299	1.516	1.732	1.949	2.165	2.382	2.598
e	imiz	0.484	0.552	0.62	0.687	0.826	1.033	1.24	1.447	1.653	1.859	2.066	2.273	2.48
k	ubuningi	0.188	0.235	0.268	0.316	0.364	0.444	0.524	0.604	0.7	0.78	0.876	0.94	1.036
k	imiz	0.15	0.195	0.226	0.272	0.302	0.378	0.455	0.531	0.591	0.658	0.749	0.81	0.902
r	ubuningi	0.03	0.03	0.03	0.03	0.03	0.06	0.06	0.06	0.09	0.09	0.09	0.09	0.09
r	imiz	0.01	0.01	0.01	0.01	0.01	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03
b	L≤6	0.75	0.875	1	1.125	1.25	1.5	1.75	2	2.25	2.5	2.75	3	3.25
b	L＞6	1	1.125	1.25	1.375	1.5	1.75	2	2.25	2.5	2.75	3	3.25	3.5

I-Dia/d		1-5/8	1-3/4	1-7/8	2	2-1/4	2-1/2	2-3/4	3	3-1/4	3-1/2	3-3/4	4
PP	I-UNC	-	5	-	4-1/2	4-1/2	4	4	4	4	4	4	4
	UNF	-	-	-	-	-	-	-	-	-	-	-	-
	8-UN	8	8	8	8	8	8	8	8	8	8	8	8
d_s	ubuningi	1.658	1.785	1.912	2.039	2.305	2.559	2.827	3.081	3.335	3.589	3.858	4.111
d_s	imiz	1.591	1.716	1.839	1.964	2.214	2.461	2.711	2.961	3.21	3.461	3.726	3.975
s	ubuningi	2.438	2.625	2.812	3	3.375	3.75	4.125	4.5	4.875	5.25	5.625	6
s	imiz	2.356	2.538	2.719	2.9	3.262	3.625	3.988	4.35	4.712	5.075	5.437	5.8
e	ubuningi	2.815	3.031	3.248	3.464	3.897	4.33	4.763	5.196	5.629	6.062	6.495	6.928
e	imiz	2.616	2.893	3.099	3.306	3.719	4.133	4.546	4.959	5.372	5.786	6.198	6.612
k	ubuningi	1.116	1.196	1.276	1.388	1.548	1.708	1.869	2.06	2.251	2.38	2.572	2.764
k	imiz	0.978	1.054	1.13	1.175	1.327	1.479	1.632	1.815	1.936	2.057	2.241	2.424
r	ubuningi	0.09	0.12	0.12	0.12	0.19	0.19	0.19	0.19	0.19	0.19	0.19	0.19
r	imiz	0.03	0.04	0.04	0.04	0.06	0.06	0.06	0.06	0.06	0.06	0.06	0.06
b	L≤6	3.5	3.75	4	4.25	4.75	5.25	5.75	6.25	6.75	7.25	7.75	8.25
b	L＞6	3.75	4	4.25	4.5	5	5.5	6	6.5	7	7.5	8	8.5

Imininingwane yokudweba

Isho ukuthini i-"UNC"?

I-UNC ibhekisela kuchungechunge olumahhadlahhaza kuchungechunge lwe-UN lwentambo ehlanganisiwe yase-United States (ongakukhetha kukho irediyasi yempande yangaphandle).

Kuyini ukwelashwa kwe-Black oxide?

I-Black oxide, indlela evamile yokwelashwa kwendawo yamakhemikhali.I-Black oxide iyindlela evamile yokwelashwa kwendawo yamakhemikhali.Isimiso ukukhiqiza ifilimu ye-oxide endaweni yensimbi ukuze ihlukanise umoya futhi ifinyelele injongo yokuvimbela ukugqwala.Uma izidingo zokubukeka zingekho phezulu, ubumnyama bungasetshenziswa, futhi ubuso bezingxenye zensimbi buba mnyama, okubizwa nangokuthi blue.

Izindlela ezisetshenziswa kakhulu zokwelapha i-black oxide zihlanganisa ukushisisa kwe-alkaline okungokwesiko kanye nokuba mnyama kwezinga lokushisa kwegumbi okwenzeka kamuva.Kodwa-ke, inqubo yokwenza mnyama ekamelweni lokushisa ayisebenzi kakhulu kwi-carbon steel ephansi.I-alkaline blackening ihlukene kabili, futhi kukhona umehluko phakathi kokuba mnyama kanye nokuba mnyama kabili.Izingxenye eziyinhloko zoketshezi olumnyama yi-sodium hydroxide ne-sodium nitrite.Umehluko wokushisa odingekayo ukuze kube mnyama awumkhulu, futhi indawo enhle ingatholakala phakathi kuka-135-155 ° C, kodwa isikhathi esidingekayo siside kancane.