ʻIke ʻoe i ka hana a ka uhi i ka wā e hoʻohana ai i ka electrode?

Hoʻokani ka uhi i kahi hopena metallurgical paʻakikī a me nā hoʻololi kino a me nā kemika i ke kaʻina hana kuʻi, kahi e lanakila ai i nā pilikia i ka welding o ka electrode photo, no laila ʻo ka uhi kekahi o nā kumu nui e hoʻoholo ai i ka maikaʻi o ka weld metala.

Ka uhi uila:Hōʻike i ka papa uhi o nā mea granular maikaʻi me nā ʻano kino like ʻole a me nā waiwai kemika i uhi ʻia ma luna o ka ʻili o ke kumu kuʻi.

ʻO ke kuleana owiliwili uilauhi:I ke kaʻina hana hoʻoheheʻe, hana ia i ka slag me ka helu hoʻoheheʻe kūpono, viscosity, density, alkalinity a me nā waiwai kino a me nā mea kemika, e hōʻoia i ka hoʻopau ʻana o ka arc, e hoʻololi maʻalahi i ka droplet metala, e hana i kahi lewa a puni ka ʻāpana arc a me ka wai hoʻoheheʻe e pale aku ai. ka welding wahi, a loaa maikai weld kukulu a me ka hana.Ma ka hoʻohui ʻana i ka deoxidizer, alloying element a i ʻole kekahi ʻike o ka pauka hao i ka uhi, hiki iā ia ke hoʻokō i nā koi o ka hana weld metala a hoʻomaikaʻi paha i ka hoʻoheheʻe ʻana.

ʻO ke kumu o ka welding arc electrode:

1. ʻIli lāʻau lapaʻau

2. Weld core

3. Mālama i ke kinoea

4: ʻAka

5. loko i hooheheeia

6. Mea kumu

7. Welina

8. Kuʻiʻo slag

9. Pahu

10. kulu hehee

Hiki ke hoʻokaʻawale ʻia nā ʻano mea like ʻole e like me kā lākou kuleana i ka uhi electrode i:

(1) Arc stabilizer

ʻO ka hana nui, ʻo ia ka maʻalahi o ka electrode e hoʻomaka i ka arc a mālama i ke ahi paʻa paʻa i ke kaʻina hana kuʻi.E like me ka arc stabilizer maka mea nui kekahi mau helu o ka haʻahaʻa ionization hiki maʻalahi ionizing mea, e like me feldspar, sodium silicate, rutile, titanium dioxide, marble, mika, ilmenite, emi ilmenite a pela aku.

(2) Mea hana kinoea

Ma lalo o ka hana o ke kinoea decomposition arc kiʻekiʻe, e hana ana i kahi ea pale, pale i ka arc a me ka metala hoʻoheheʻe, pale i ka intrusion o ka oxygen a me ka nitrogen i ka ea a puni.ʻO nā mea hana kinoea i hoʻohana mau ʻia he carbonate (e like me ka marble, dolomite, rhombic acid, barium carbonate, etc.) a me nā mea kūlohelohe (e like me ka pauka lāʻau, starch, cellulose, resin, etc.).

(3) Deoxidizer (ʻike pū ʻia he mea hoʻemi hoʻemi)

Hiki ke hōʻemi ʻia ka ʻike o ka oxygen i ka weld metala a hiki ke hoʻomaikaʻi ʻia ka hana o ka weld metala e ka hopena metallurgical kemika i ke kaʻina hana kuʻi.Loaʻa ka Deoxidizer i nā mea o ka hao hao a me ka pauka metala me ka pili nui no ka oxygen.ʻO ka deoxidizer maʻamau ka ferromanganese, ferrosilicon, ferrotitanium, ferroaluminum, silicon calcium alloy, etc.

(4) Mea hoʻopalapala

ʻO kāna hana nui ka hoʻomaikaʻi ʻana i ka plasticity, elasticity a me ka wai i ke kaʻina hana o ka electrode i kaomi ʻia i ka uhi ʻana, hoʻomaikaʻi i ka maikaʻi o ka uhi ʻana o ka electrode, i ʻole e haki ka ʻili o ka electrode coating.E koho maʻamau i kekahi elasticity, pahee a absorbent ma hope o kekahi ʻano hoʻonui o nā mea, e like me ka mika, ka lepo keʻokeʻo, ka titanium dioxide, talc, ke aniani wai paʻa, cellulose, etc.

(5) Agena huila

Hoʻohana ʻia ia e hoʻopaʻi i ka puhi ʻana o nā mea hoʻohui i loko o ke kaʻina hana kuʻi ʻana a me ka hoʻoili ʻana i nā mea hoʻohui i ka weld, i mea e hōʻoia ai i ka hoʻohui kemika a me nā waiwai o ka metala weld.E like me ka pono e koho i nā ʻano ferroalloys (e like me ferromanganese, ferrosilicon, ferrochrome, iron and steel, ferric vanadium, ferric niobium, ferric boron, rare earth ferrosilicon, etc.) , nickel pauda, ​​tungsten pauda, ​​etc.).

(6) He mea hana paʻa

Hiki i ka welding ke hana i kekahi mau waiwai kino a me nā kemika o ka pala i hoʻoheheʻe ʻia, e pale i ka droplet welding a me ka wai hoʻoheheʻe metala, e hoʻomaikaʻi i ka hoʻokumu ʻana i ka weld, e like me ka slagging agent o nā mea maka he marble, fluorite, dolomite, magnesia, feldspar, keʻokeʻo lepo, mica, quartz , rutile, titanium dioxide, ilmenite, etc.

(7) Hoʻopili

Hoʻopaʻa paʻa ʻia ka mea hoʻopili i ke kumu welding, a loaʻa i ka electrode coating kekahi ikaika ma hope o ka maloʻo ʻana.I ke kaʻina hana o ka welding metallurgy, ʻaʻohe hopena ʻino i ka wai weld a me ka weld metala.ʻO nā mea hoʻopaʻa maʻamau i hoʻohana ʻia he sodium silicate (potassium, sodium a hui ʻia ka sodium silicate) a me ka resin phenolic, gum, etc.