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

ASME B18.2.1 UNC Hex Bolt Ibanga 5 Usayizi Intshi Ye-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 bube mnyama, obubizwa 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 ku-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.