Nā kumu a me ka pale ʻana i nā māwae kuʻekuʻe wāwae o ka ʻili paʻa

E hoʻohana i kā mākou hui GFH-D507Mo valve nā mea hoʻohana wili kūikawā no ka hoʻoulu ʻana, ʻaʻohe māwae ma ka ʻili.

2. ʻO nā kumu nui o ka paʻa ʻana o ka ʻili i nā māwae

Nui nā kumu e hoʻomaka ai nā māwae.No ka paʻa paʻa paʻa ʻana i ka hoʻoheheʻe ʻana i luna, hiki ke hoʻokaʻawale ʻia i nā māwae wela i hiki ke loaʻa ma hope o ka hala mua a i ʻole ka lua, a me nā māwae anu e ʻike ʻia ma hope o ka lua a i ʻole ma hope o ka hoʻopili ʻana.
māwae wela:
I ka wā o ke kaʻina hana hoʻoheheʻe, hoʻomaʻalili ka metala i loko o ka weld seam a me ka wela wela i kahi wela wela kokoke i ka laina solidus e hana i nā māwae.
māwae anu:
ʻO nā māwae i hana ʻia ma nā mahana ma lalo o ka solidus (ma kahi o ka martensitic transformation temperature o ke kila) ka mea nui i loaʻa i nā kila kalapona waena a me nā kila haʻahaʻa ikaika kiʻekiʻe a me nā kila waena.

E like me ka inoa e hōʻike nei, ʻike ʻia nā huahana ʻili paʻa no ko lākou paʻakikī kiʻekiʻe.Eia nō naʻe, ʻo ka ʻimi ʻana i ka paʻakikī i ka mechanics ka hopena i ka emi ʻana o ka plasticity, ʻo ia hoʻi, ka piʻi ʻana o ka brittleness.ʻO ka ʻōlelo maʻamau, ʻaʻole nānā nui ka ʻili ma luna o ka HRC60 i nā māwae wela i hana ʻia i ka wā o ke kaʻina hana kuʻi.Eia naʻe, paʻakikī surfacing kuʻihao me ka paakiki ma waena o HRC40-60, ina he koi no na mawae, Na intergranular māwae i loko o ka welding kaʻina hana a me ka liquefaction a me multilateral māwae ma muli o ka weld bead luna a hiki i ka wela-pili wahi o ka weld lalo. pilikia loa ka bead.

ʻOiai inā e hoʻomalu maikaʻi ʻia ka pilikia o nā māwae wela, e kū mau ana ka hoʻoweliweli o nā māwae anu ma hope o ka hoʻoheheʻe ʻana i luna, ʻoi aku ka palupalu loa o nā mea e like me ka weld weld bead, ʻoi aku ka maʻalahi o nā māwae anu.ʻO ka māwae koʻikoʻi ka hapa nui o nā māwae anu
3. Nā mea koʻikoʻi e pili ana i nā māwae pale ʻaʻahu ma nā ʻili paʻa a me nā hoʻolālā e pale aku i nā māwae

ʻO nā mea koʻikoʻi e hiki ke ʻimi ʻia i ka wā e puka mai ai nā māwae i loko o ke kaʻina hana ʻaʻahu ʻili paʻakikī e like me kēia, a ua manaʻo ʻia nā hoʻolālā kūpono no kēlā me kēia kumu e hōʻemi ai i ka pilikia o nā māwae:

1. Mea kumu
He mea koʻikoʻi loa ka mana o ka metala kumu ma luna o ka ʻili paʻa paʻa, ʻoi aku hoʻi no nā mea hana me ka liʻiliʻi o 2 mau papa o ka hoʻoheheʻe ʻana.Hoʻopili pololei ke ʻano o ka metala kumu i nā waiwai o ka weld bead.ʻO ke koho waiwai kahi kikoʻī e pono e noʻonoʻo ʻia ma mua o ka hoʻomaka ʻana i ka hana.No ka laʻana, inā e uhi ʻia kahi mea hana valve me ka paʻakikī paʻakikī e pili ana i ka HRC30 me kahi mea hao kumu, pono ia e hoʻohana i kahi mea hoʻoheheʻe me ka paʻakikī haʻahaʻa haʻahaʻa, a i ʻole e hoʻohui i kahi papa waena o ke kila kila, i mea e hiki ai. pale i ka maʻiʻo kalapona i loko o ka mea kumu mai ka hoʻonui ʻana i ka pilikia o ka weld bead māwae.