He kuleana ko ka coating i nā hopena metallurgical paʻakikī a me nā hoʻololi kino a me nā kemika i ka wā o ke kaʻina hana welding, ma ke kumu e lanakila ai i nā pilikia o nā electrodes māmā i ka wā welding, no laila ʻo ka uhi kekahi o nā kumu nui e hoʻoholo ai i ka maikaʻi o ka weld metala.
Electrode coating: e pili ana i ka papa uhi i uhi like ʻia ma ka ʻili o ke kumu hoʻoheheʻe ma o ka hoʻopaʻa ʻana i nā mea momona maikaʻi me nā waiwai kino a me nā mea kemika.
ʻO ke kuleana o ka uhi electrode: e hana i ka slag me nā waiwai kino a me nā kemika kūpono e like me ka helu heheʻe, viscosity, density, a me ka alkalinity i ka wā o ke kaʻina hana kuʻi, e hōʻoia i ka hoʻopau ʻana i ka arc, e maʻalahi ka hoʻololi ʻana i ka metala droplet, a e lilo a puni ka ʻāpana arc a me ka loko i hoʻoheheʻe ʻia E hana i kahi lewa e pale ai i ka wahi wili, a loaʻa ke ʻano weld maikaʻi a me ka hana.
Hiki nō hoʻi ke hoʻohui i nā deoxidizers, nā mea hoʻohuihui a i ʻole ka nui o ka pauka hao i ka uhi e hoʻokō i nā koi o ka hana weld metala a hoʻomaikaʻi paha i ka hana deposition.
He maikaʻi maikaʻi nā mea welding Xinfa, e ʻoluʻolu e nānā i nā kikoʻī:https://www.xinfatools.com/welding-material/
Electrode arc welding principle 1. ʻIli lāʻau 2. Solder core 3. Keeaea pale 4. Arc 5. Melt pool 6. Base material 7. Weld 8. Welding slag 9. Slag 10. Droplets
Hiki ke hoʻokaʻawale ʻia nā ʻano mea maka i:
(1) arc stabilizer
ʻO ka hana nui, ʻo ia ka hana maʻalahi o ka electrode e hahau i ke arc a mālama mau i ke ahi i ka wā o ke kaʻina hana kuʻi. ʻO nā mea maka i hoʻohana ʻia e like me ka arc stabilizers ka mea nui i loaʻa i kekahi mau mea ionized maʻalahi me ka haʻahaʻa ionization haʻahaʻa, e like me feldspar, aniani wai, rutile, titanium dioxide, marble, mica, ilmenite, ilmenite hoʻemi, etc.
(2) Mea hana kinoea
Hoʻopau ʻia ke kinoea ma lalo o ka wela kiʻekiʻe o ke arc, e hana ana i kahi ea pale, e pale ana i ke arc a me ka metala wai hoʻoheheʻe ʻia, a pale i ka komo ʻana o ka oxygen a me ka nitrogen i ka lewa a puni. ʻO nā mea hana kinoea i hoʻohana mau ʻia he carbonates (e like me ka marble, dolomite, magnesite, barium carbonate, etc.) a me nā mea kūlohelohe (e like me ka palaoa lāʻau, starch, cellulose, resin, etc.).
(3) Deoxidizer (ʻike pū ʻia me ka mea hoʻemi hoʻemi)
Ma o ka hopena metallurgical kemika i ke kaʻina hana hoʻoheheʻe, hoʻemi ʻia ka ʻike o ka oxygen i ka weld metala, a hoʻomaikaʻi ʻia ka hana o ka weld metala. ʻO nā Deoxidizer ka nui o nā mea hao a me kā lākou mau pauka metala i loaʻa nā mea me ka pili kiʻekiʻe no ka oxygen. ʻO nā deoxidizer maʻamau i hoʻohana ʻia me ka ferromanganese, ferrosilicon, ferrotitanium, ferroaluminum, a me nā alloys silicon-calcium.
(4) Mea hoʻopalapala
ʻO ka hana nui ka hoʻomaikaʻi ʻana i ka plasticity, elasticity a me ka fluidity o ka coating coating i ke kaʻina o ka electrode press coating, hoʻomaikaʻi i ka maikaʻi o ka electrode coating, a hoʻomaʻamaʻa i ka ʻili o ka electrode coating me ka ʻole o ka haki. ʻO ka maʻamau, koho ʻia nā mea me kekahi elasticity, slipperiness a i ʻole kekahi mau hiʻohiʻona hoʻonui ma hope o ka hoʻopili ʻana i ka wai, e like me ka mika, ka pālolo keʻokeʻo, titanium dioxide, talcum pauka, aniani wai paʻa, cellulose, etc.
(5) mea hoʻohuihui
Hoʻohana ʻia ia e uku no ka pau ʻana o nā mea hoʻohui i ka wā wili a me ka hoʻololi ʻana i nā mea hoʻohui i loko o ka weld e hōʻoia i ka hoʻohui ʻana a me nā waiwai o ka metala weld. Hiki ke koho ʻia nā ferroalloys like ʻole (e like me ferromanganese, ferrosilicon, ferrochrome, steel, ferrovanadium, ferroniobium, ferroboron, rare earth ferrosilicon, etc.) e like me ka pono. kali).
(6) He mea hoʻoheheʻe
I ka wā wili, hiki iā ia ke hana i ka slag me kekahi mau waiwai kino a me nā kemika, pale i nā kulu welding a me nā metala wai hoʻoheheʻe, a hoʻomaikaʻi i ka hoʻokumu ʻana i ka weld. ʻO nā mea waiwai i hoʻohana ʻia e like me ka slagging agents e pili ana i ka marble, fluorite, dolomite, magnesia, feldspar, White Mud, mica, quartz, rutile, titanium dioxide, ilmenite, etc.
(7) Hoʻopili
E hoʻopaʻa paʻa i ka mea hoʻopili i ke kumu hoʻoheheʻe, a hana i ka pale electrode i kekahi ikaika ma hope o ka maloʻo. ʻAʻohe hopena pōʻino i ka loko i hoʻoheheʻe ʻia a me ka weld metala i ka wā o ka wiliwili metala. ʻO nā mea hoʻopaʻa maʻamau i hoʻohana ʻia he aniani wai (potassium, sodium a me kā lākou aniani wai hui ʻia), phenolic r
Ka manawa hoʻouna: Mei-08-2023
