Hoʻomākaukau ma mua o ka wili

ʻO ka hana hoʻomākaukau ma mua o ke kuʻiʻana he mea nui e like me ke kaʻina hana hoʻoheheʻe, e pili pono ana i ka maikaʻi o ka welding a me ka hopena o ka huahana i hoʻopauʻia.

1. Hoʻomaloʻo electrode

ʻO ke kumu o ka hoʻomaloʻo ʻana i ka electrode ma mua o ke kuʻi ʻana, ʻo ia ka wehe ʻana i ka wai i loko o ka electrode pulu a hoʻemi i ka hydrogen i loko o ka wai i hoʻoheheʻe ʻia a weld e pale i nā pores a me nā māwae anu.ʻOkoʻa ke kaʻina hana hoʻomaloʻo o nā electrodes me nā ʻano uhi like ʻole, a ua lawe ʻia ke kaʻina hoʻomaloʻo e like me ke kaʻina hana i ʻōlelo ʻia ma ka manual instruction o ka electrode.Manaʻo ʻia e maloʻo e like me nā ʻōlelo aʻoaʻo o Tianqiao welding electrodes.

2. Hoʻomaʻemaʻe ma mua o ka wili

E pili ana ia i ka wehe ʻana o ka aila, ka ʻōpala, ka pena a me ka wai ma ka ʻili o ke awāwa hui a me kona wahi e pili ana (ma kahi o 50mm) ma mua o ka wili.Ke kuʻi ʻia me nā electrodes alkaline, paʻa a paʻa nā koi hoʻomaʻemaʻe, inā ʻaʻole hiki ke hana maʻalahi nā pores a me nā māwae lohi.ʻAʻole paʻakikī loa nā electrodes acid i ka ʻōpala.Inā maʻalahi ka ʻōpala a ʻaʻole kiʻekiʻe ka maikaʻi o ka weld, ʻaʻole hiki ke wehe ʻia.

3. Hoʻomāhana mua

E pili ana ia i ke kaʻina hana e hoʻomehana pono i ka holoʻokoʻa a i ʻole ka hapa o ka weldment ma mua o ka wili.ʻO kāna kumu nui e hōʻemi i ka helu hoʻomaha o ka hui ma hope o ke kuʻi ʻana, pale i ka hana ʻana o ka hale paʻakikī, a hoʻemi i ke kaumaha a me ka deformation.He ala kūpono ia e pale aku ai i nā māwae wili.ʻO ka pono o ka preheating a me ke kiʻekiʻe o ka wela preheating e pili ana i nā waiwai o ka metala kumu, ka electrode i hoʻohana ʻia a me ke kāohi ʻana o ka hui.

No nā hale maʻamau o nā kila haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa a me nā kila ikaika kiʻekiʻe me nā pae ikaika haʻahaʻa, ʻaʻole pono ka hoʻomehana ʻana.Eia nō naʻe, no nā hale me ka rigidity kiʻekiʻe a i ʻole ka weldability maikaʻi ʻole i hiki i nā māwae, koi ʻia ka preheating ma mua o ke kuʻi ʻana.ʻO nā mea welding me ka conductivity thermal kiʻekiʻe, e like me ke keleawe, aluminika a me kā lākou mau ala, i kekahi manawa e koi i ka preheating, hiki ke hōʻemi i ka manawa welding a hoʻonui i ka hohonu o ke komo ʻana, a maʻalahi hoʻi i ka hui ʻana o ka weld metala a me ka metala kumu.

Pono e kuhikuhi ʻia ʻo ka preheat welding ʻaʻole wale ka hoʻohana ʻana i ka ikehu, haʻahaʻa huahana, akā ʻoi aku ka maikaʻi o nā kūlana hana.Pono e hana ʻia ka welding me ka ʻole preheating a i ʻole ka haʻahaʻa haʻahaʻa preheating inā hiki.ʻO ka hoʻohana ʻana i nā electrodes ʻano hydrogen haʻahaʻa hiki ke hōʻemi i ka mahana preheating, no ka maikaʻi o kona kūʻē ʻana, akā pono ka haʻahaʻa o ka wai o ka electrode.I ka wā e ʻae ʻia, hiki ke koho ʻia ka electrode e like me ke kumu o ka hui haʻahaʻa, ʻo ia hoʻi, ʻoi aku ka ikaika o ka metala i waiho ʻia ma mua o ka metala kumu, a ʻoi aku ka maikaʻi o ka plasticity a me ka paʻakikī o ka electrode. o ka metala kumu no ka wiliwili, i hiki ke hoemiia ka wela preheating a i ole hiki ke hoohana ia.

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