Nā Bolts Kūlana Hex Kaumaha (ASTM A 325 ASTM A 490)

No ka ʻoi aku ka maikaʻi o ke kūkulu ʻana a me ka hilinaʻi i nā papahana kūkulu, hilinaʻi i nā bolts structural hex kaumaha e like me nā kūlana ASTM A325 a me A490. Me kā lākou hana kila kiʻekiʻe, kū i ka wā, a me ka hoʻokō paʻa ʻana i nā kūlana ʻoihana, hāʻawi kēia mau bolts i ka hana hilinaʻi i nā noi hoʻolālā koʻikoʻi.

Hoʻohālike:ASME B 18.2.6

E hoʻouna i ka nīnau

Hōʻike huahana

[281]

Kūlike Kūleʻa:Hoʻolālā ʻia nā bolts structural hex kaumaha e like me ASTM A325 a me ASTM A490 e hāʻawi i ka kūpaʻa kūʻokoʻa i ke koi ʻana i nā hana kūkulu a me nā ʻoihana. Hoʻolālā ʻia kēia mau bolts e kū i nā haʻahaʻa kiʻekiʻe a me nā koʻikoʻi, e kūpono ana iā lākou no nā noi koʻikoʻi kahi e pono ai ka palekana a me ka hilinaʻi.

Ke kila ikaika kiʻekiʻe:Hana ʻia mai nā ʻāpana kila ikaika loa, hāʻawi kēia mau bolts i nā waiwai tensile a me ka ikaika shear, e hōʻoiaʻiʻo ana i ka hana pono i nā pilina pili. ʻO kā lākou hana paʻa i mea kūpono no ka hoʻohana ʻana i nā alahaka, nā hale, nā hale kiaʻi, a me nā hale lawe ukana ʻē aʻe i hoʻokau ʻia i nā ukana kaumaha a me nā ikaika ikaika.

Kū'ē i ka lewa:Hoʻolālā ʻia nā bolts kūkulu hex kaumaha e kūʻē i nā mea kūlohelohe e like me ka corrosion, rust, a me nā kūlana lewa. Me nā mea hoʻoheheʻe pale corrosion koho a me nā mea waiwai, hāʻawi kēia mau bolts i ka lōʻihi a me ka hilinaʻi, ʻoiai i loko o nā kaiapuni waho koʻikoʻi a me nā noi kai.

Preload and Clamping Force:Ma ka hāʻawi ʻana i kahi kiʻekiʻe kiʻekiʻe o ka preload a me ka ikaika clamping, ASTM A325 a me A490 bolts e kōkua i ka mālama pono ʻana a pale i ka wehe ʻana ma lalo o nā ukana ikaika a me nā haʻalulu. Mālama kēia i ka paʻa ʻana o nā pilina pili i ka manawa, e hōʻemi ana i ka pilikia o ka hana ʻole ʻana a me ka hōʻoia ʻana i ka palekana o nā limahana a me nā waiwai.

Hoʻokō a me ka palapala hōʻoia:E like me nā kūlana o ka ʻoihana, ua hoʻāʻo ʻia nā bolts structural hex koʻikoʻi e hōʻoia i ka hoʻokō ʻana i nā kikoʻī ASTM A325 a me A490. Hoʻopili kēia i ka hoʻāʻo mechanical, ka nānā ʻana i nā kemika, a me nā loiloi dimensional e hōʻoia i ka hana a me ka pololei o nā bolts, e hāʻawi ana i ka hōʻoia o ka maikaʻi a me ka hilinaʻi.

Nā manaʻo hoʻokomo:ʻO nā ʻenehana hoʻonohonoho kūpono, me nā kaʻina hana hoʻopaʻa pololei a me ka pretensioning bolt, pono e hoʻonui i ka hana o nā bolts structural hex kaumaha. Ma muli o nā ʻōlelo aʻoaʻo a nā mea hana a me nā hana maikaʻi loa o ka ʻoihana e hōʻoia i ka hana bolt maikaʻi loa a me ka pololei o ke kūkulu ʻana.

Kūkākūkā akamai:Ke kuhikuhi nei i nā bolts structural hex koʻikoʻi no nā papahana kūkulu, pono ke kūkākūkā me nā mea ʻenekinia a me nā loea hoʻopaʻa. Hiki iā lākou ke hāʻawi i ke alakaʻi i ke koho ʻana i ke ʻano bolt kūpono, ka nui, a me ka helu e hoʻokō i nā koi kikoʻī o ka noi a hōʻoia i ka hoʻokō ʻana i nā kūlana ʻoihana.

Nā noi koʻikoʻi:He mea koʻikoʻi nā bolts structural heavy heavy i ke kūkulu ʻana a me nā ʻāpana hana, kahi e hana nui ai lākou i ka hōʻoia ʻana i ka palekana a me ka paʻa o nā wahi i kūkulu ʻia. Mai nā alahaka a me nā hale a hiki i nā ʻoihana ʻenehana a me nā ʻoihana kaʻa kaʻa, hāʻawi kēia mau bolts i ka kūpaʻa a me ke kūpaʻa ʻana o nā papahana ʻoihana pono.

Uila Uila
d

1/2

5/8

3/4

7/8

1-1/8

1-1/4

1-3/8

1-1/2

d_s	max
d_s	min
s	Nui inoa
	max
	min
e	max
e	min
k	Nui inoa
	max
	min
b	Ref.

0.515	0.642	0.768	0.895	1.022	1.149	1.277	1.404	1.531
0.482	0.605	0.729	0.852	0.976	1.098	1.223	1.345	1.47
7/8	1-1/16	1-1/4	1-7/16	1-5/8	1-13/16	2	2-3/16	2-3/8
0.875	1.062	1.25	1.438	1.625	1.812	2	2.188	2.375
0.85	1.031	1.212	1.394	1.575	1.756	1.938	2.119	2.3
1.01	1.227	1.443	1.66	1.876	2.093	2.309	2.526	2.742
0.969	1.175	1.383	1.589	1.796	2.002	2.209	2.416	2.622
5/16	25/64	15/32	35/64	39/64	11/16	25/32	27/32	15/16
0.323	0.403	0.483	0.563	0.627	0.718	0.813	0.878	0.974
0.302	0.378	0.455	0.531	0.591	0.658	0.749	0.81	0.902
1	1.25	1.38	1.5	1.75	2	2	2.25	2.25