ʻEkolu mau mea nui no ka helu 12.9 Bolts (12.9, 12.9 ma ka bolt):ʻO ke kāwele kākela i mare ai iā Galborn Helene heleth Herita, antrost Steel mare, a me ke keleawe.
(1)ʻO ke kāmela carbon (e like meʻO nā kālena Carbon Weeld i nā bolts anchor). Hoʻokumu mākou i nā bipi kīʻaha kīʻaha, kūlikeʻona transel, koʻikoʻi kiʻekiʻe o ka trael i nā mea kila carbon i loko o ke kila kālepa.
1. Ua kapaʻiaʻo Carbon haʻahaʻa me C% <0.25% i kapaʻiaʻo A3 Steel ma Kina. Ma waho, ua kapaʻia lākou he 1008, 1015, 10,08, 1022, etc.
2.ʻO ka caniel carbon carbon 0.25%
Hoʻohui koho: Hoʻohui i nā mea koho balota e hoʻonui ai i nā mea kālepa carbon maʻamau e hoʻonui ai i kekahi mau waiwai kūikawā o ka kila
3. 10b38. ʻO nā mea i hoʻohana nuiʻia e hoʻohana nui ai nā frangsheng
(2)ʻO ke kila kila (e like me nā kaula kila kila i hoʻopaʻaʻia). Ka hana: 45, 50, 2010, 60,ʻo 50,ʻo Austentite (18% CR, 8% Ni)
ʻO ka paleʻana o ka corrosion maikaʻi a me ka welau maikaʻi. A1 C1, C
2. C4 ferritic feelless steeller. He 18% cr iʻoi aku ka maikaʻi o ka corrosibility a ikaika i ka paleʻana o ka corrosion ma mua o ka martite. I kēia manawa, i hanaʻia nā mea i hāʻawiʻia ma ka mākeke ma Iapana.
ʻOno. Wahi a ka pae, ua hoʻokaʻawaleʻia ia i ka sus302, sus304 a sus316.
3) keleawe. ʻO nā mea hoʻohana maʻamau i hoʻohanaʻia ... zinc-keleawe alloy. H62, H65, aʻo H65, aʻo H68 i hoʻohana nuiʻia e like me nā'āpana maʻamau i ka mākeke.
12.9ʻO ka hopena o nā mea likeʻole i nā mea e pili ana i nā mea kūʻai ma nā waiwai o ke kila:
1. Kalepa (c): E hoʻomaikaʻi i ka ikaika o nā'āpana kī, he emi iho e like me nā palekana palekana,ʻaʻole hoʻi e emi iki.
A e pili ana ia i ka hana maloʻo maloʻo a me ka hanaʻana i ka hanaʻana i nā'āpana kila.
2, Manganese (MN): hoʻomaikaʻi i ka ikaika o nā'āpana kila a hoʻomaikaʻi i ka paʻakikī i kahi ākea. ʻO ia ka'ōlelo, ua hoʻonuiʻia ka ikaika o ka kolepa paʻakikī i ka wā o ke ahi ahi.
Hiki iā ia ke hoʻomaikaʻi i ka maikaʻi o ka nui, akā he nui loa ka manganameʻaʻole i hoʻopaʻapaʻa like me ka disctility a me ka welubility. A e hooponua ka mana o ka papaaina i ka wā e kokoke ana.
3
ʻO ka hopena lapaʻau e hōʻemi i ka hopena o ka hydrogen embrittlement.
4. Kohi (CROM): Hiki iā ia ke hoʻomaikaʻi i ka ikaika, hoʻomaikaʻi i ke kū'ēʻana, a kōkua i ka mālamaʻana i ka ikaika ma nā kiʻekiʻe kiʻekiʻe.
5 ^ o mo): Hiki iā ia ke kōkua i ka mālama mālamaʻana, e hōʻemi i ke koʻikoʻi o ka mea kila i ka wela kiʻekiʻe.
Nā hopena nui.
6. Boron (B): Hiki iā ia ke hoʻomaikaʻi i ka paʻakikī a kōkua i ka hoʻohaʻahaʻa haʻahaʻa haʻahaʻa e hana i ka hopena wela i ka hana wela.
7
8. Silini (si): E hōʻoia i ka ikaika o nā'āpana kila. Hiki i nāʻikepili kūpono ke hoʻomaikaʻi i ka momona a me ka paʻakikī o nā'āpana kila.
ʻO 35Crmo Steel kahi mea maikaʻi loa no ka papa o ka mīkini 129 e pili ana i nā cold bolts a hiki ke hoʻokō i nā pono waiwai o kaʻoihana.
He kaʻina hana hiki iā ia ke hāpai i ka mālama wela o ka wela o ka wela, a me ka holoiʻana o ka pā o ka nui, a hiki i keʻano
E kiʻi i nā bolts kiʻekiʻe, kiʻekiʻe
Ua hoʻokaʻawaleʻia nā kumukūʻai o nā Bolts i hoʻohanaʻia no nā pili o ke kilaki e hoʻopiliʻia ma mua o 106, 4.8, 10.8, 108, 10.9, a me 12,8,9 ,,9,9, 108,9, helu.
I waena o lākou, nā bolts o ka helu 8.8 a ma luna o ka lole haʻahaʻa haʻahaʻa a me ka wela i hanaʻia.
Ua kapaʻia ke koena i nā bolts maʻamau maʻamau. ʻO ka hōʻailona helu helu Bolt e pili ana iʻelua mau'āpana o nā helu, e hōʻike ana i ka waiwai o ke kumukūʻai o keʻano o ke kumukūʻai
ʻO ka hopena o ka ikaika-ikaika. No ka laʻana, he bolt me ka pae hana ma ka pae 4.6:
1.ʻO ka ikaika o keʻano o keʻano o keʻano o ka bolt e hiki ai i ka mea kūʻai aku e hōʻea iā 400mppa;
ʻO ka hāʻawiʻana o ka ikaika o ka ikaika o ka waiwai o ka bolt ma kahi o 0.6:
2.ʻO ka ikaika e hāʻawi ana i ka ikaika e hāʻawi aku ai i ka ikaika o ka bolt e hiki ai i ka mea kūʻai aku 400 × 0.6 = 240mpa hana kiʻekiʻe. Ua ho'ālaʻia ka mea
3. Ma hope o ka hoʻoiliʻana, hiki iā ia ke hoʻokō:
1. Loaʻa i ka pākuhi bolt i ka ikaika o ka ikaika o 1000mpa.
2.ʻO ka helu o ka ikaika o ka ikaika o ka ikaika o ka bolt ma ka 0.9:
3.ʻO ka ikaika e hāʻawi aku ai i ka ikaika o ka bolt i hiki i nā mea bolt e hiki i 1000 × 0.9 = 900mpa pae
10.9 Nā papa helu helu e koi ai i ka carbon andium carbon alloy killoy a me ka hoʻoikaikaʻana i ka maʻi wela, e like me 35crmo 40crmo 40cr a me nā mea likeʻole
ʻO ka papa inoa loiloi helu Bolt ka ikaika o ka ikaika o ka'ōpū o ka bolt. Ia't he aha ka mea o ke kumu, he aha'ʻO nā mea nui e hōʻike ana i nā hōʻailona mechanical e like me ka ikaika
Post Time: APR-16-2024