I ka hana hana hanaʻana o ka hōʻailona o ka mīkini makaniʻo Windows, he hana koʻikoʻi nui ia. ʻO ka maikaʻi o ka ulding e pili ana i ka hopena o ka hana o ka hale kiaʻi. No laila, pono ia e hoʻomaopopo i nā kumu o nā hana weeld a me nā mea paleʻole.
ʻO PossIty:ʻO keʻano e pili ana i ka lua i ka lua i hanaʻia i loko o ke kaheʻana o ke kino ma mua o ka pūpū metala. Its gas may be absorbed by the molten pool from the outside, or it may be generated by reaction in the welding metallurgy process.
(1)ʻO nā kumu nui no nā lua ea: Aia, e ulu ana ka nui o nā mea hao, a me ka nui o ka wai , hui scain, a me ka'ōpū i kaʻaiʻana a me ka fluke o ka hoʻouluuluʻana i keʻano o keʻano o ke kino i ka martical. ʻO ka māmā māmā ka liʻiliʻi o ka māmā, aʻo ka wikiwiki o ka hoʻoilo o ka wai wai nui, he nui ka laweʻana i ka pakele o ke kinoea. ʻAʻole lawa ka doxidation o Weld Metal e hoʻonui pū i ka poli o ka oxygen.
A. Wehe i ka ailaʻaila, ka wai, wai a me nā birries mai ka wist ulding, e hana ana i nā papa hele a me kāna mau papa hele.
b. E lilo aʻo Alkalinane Welding a me nā maʻi a maloʻo loa.
c hoowela. DC reverse connection and short arc welding shall be adopted.
D.Preheat ma mua o ka hoʻoliloʻana e lohi i ka wikiwiki o ka wikiwiki.
E. E laweʻia i ka hanaʻana me nā kiko'ī ikaika.
A. E hōʻemi i nāʻike o nā mea hōʻeha e like me sulfur a me pspphoropus, a maule me nā mea haʻahaʻa me ka haʻahaʻa.
b. Certain alloy elements are added to reduce columnar crystals and segregation. For example, aluminum and iron can refine grains.
c hoowela. ʻO ka weld me ka papaʻaina papa e hoʻohanaʻia e hoʻomaikaʻi i keʻano o ka wela wela i ka wā e hoʻoheheʻeʻia ai ka paleʻana i ka welding.
d. Welding specifications shall be reasonably selected, and preheating and afterheating shall be adopted to reduce the cooling rate.
e. Adot kūpono i nā'ōlelo address kūpono e hōʻemi i ka hoʻohaʻahaʻaʻana i ke kaumaha.
Nā ana e pale ai i nā cracks reheat:
A. E hoʻolohe i ka hopena o ka hoʻoikaikaʻana i nā mea metallurgical a me ko lākou mana i nā mea hou aʻe.
b. Kumu kūpono a hoʻohana paha i ka hahaiʻana i ka hope e kāohi ai i ka nui o ka wikiwiki.
c hoowela. Hoʻemi i ke kaumaha kūlohelohe e pale ai i ke koʻikoʻi o ke koʻikoʻi.
d. During tempering, avoid the sensitive temperature zone of reheat cracks or shorten the residence time in this temperature zone.
Nā hana e pale ai i nā pale anuanu:
A. E hoʻohanaʻia ke koʻokoʻo hydroven haʻahaʻa haʻahaʻa alkaline, e holoi ikaikaʻia ai ka lehulehu, mālamaʻia ma ka 100-150 ℃, a hoʻohanaʻia ma ka laweʻana.
b. Mahuahua e hoʻonuiʻia ana ma ke ala heʻelima, e laweʻia ka wahiʻawa i hōʻikeʻia, aʻaʻole e emi ka ma ke ea eʻole ana ma ke ea kamaha. E kohoʻia ka mea hōʻoia e kūpono ai e pale aku ai e pale i ka palauʻole a me nā mea paʻakikī ma ka weld.
c hoowela. Select reasonable welding sequence to reduce welding deformation and welding stress.
d. Conduct hydrogen elimination heat treatment in time after welding