ʻIke maoli ʻoe i ka blast venturi nozzle? E ʻimi kākou!

--E hoʻomaopopo i ka nozzle venturi mai ʻekolu ʻaoʻao

ʻO Abrasive Blasting, ma ke ʻano he kaʻina hana hoʻopau i ka ʻili e hoʻohana maʻamau i ka hoʻohana ʻana i ka mea hoʻoheheʻe ea a me ka mīkini hoʻoheheʻe ʻana, ʻo ia ka pīpī ʻana i nā ʻāpana abrasive i kahi ʻili e pono ai e lilo i ʻoi aku ka maʻalahi a i ʻole ka ʻeleʻele.

Nozzle, ma ke ʻano he mea nui o ka puhi ʻana, ua hoʻomohala e like me nā pono o ka manawa. He mau nozzles pololei wale nō ma ka waena o 1950s. Eia nō naʻe, ua ʻike ka mea hoʻoheheʻe i ka drawback o lākou no ka ʻaʻahu ʻia a me ka ʻino i loko. A i kēlā manawa, ua ʻike ʻia kahi ʻano pahū ʻoi aku ka maikaʻi, ʻo venturi nozzle. No laila he aha nā venturi nozzles? E nānā pono kākou.

Kapili o Venturi Nozzle

Ma ke ʻano o ka helehelena, ua māhele ʻia ka nozzle venturi i ʻekolu mau ʻāpana. ʻO ka mua, hoʻomaka ia me kahi puka komo hoʻololi lōʻihi, a ukali ʻia e kahi ʻāpana pololei palahalaha pōkole, a laila loaʻa kahi hopena lōʻihi e ʻoi aku ka ākea ke hiki i kahi kokoke i ka puka o ka nozzle. ʻO ia ʻano hoʻolālā e kōkua i ka hoʻonui ʻana i ka pono hana e 70%, a pehea e hoʻokō ʻia ai kēia?

Komo ka ea a me ka abrasive i ka nozzle ma o ka inlet converging lōʻihi a laila kahe i ka ʻāpana pololei pōkole ʻoiai e emi ana ke kaomi i kēlā manawa, e hopena i ka ʻokoʻa ma waena o loko a me waho. Hāʻawi kēia ʻokoʻa puʻe i kahi ikaika o waho no nā ʻāpana abrasive. Ke haʻalele ka mea abrasive i ka nozzle, ʻoi aku ka wikiwiki o ka wikiwiki ma mua o ka nozzle wili pololei. No laila e maʻemaʻe ka ʻili.

Nā ʻano o Venturi Nozzle

He ʻokoʻa nā ʻano o ka venturi blasting nozzle i hoʻokaʻawale ʻia mai nā kihi like ʻole. Eia kekahi laʻana, mai ka hiʻohiʻona o ka inlet, ua māheleʻia i loko o hoʻokahi-inlet a me ka lua-inlets. Hoʻokaʻawale ʻia ia i ka boron carbide, silicon carbide, a me tungsten carbide i nā mea liner. Eia kekahi, ua hoʻokaʻawale ʻia ke ʻano o ka milo i ka milo coarse a me ka milo maikaʻi.

1.Classified e inlet

1.1 Hoʻokahi-inlet venturi nozzle

Hoʻokahi-inlet venturi nozzle, e hahai i ka Venturi Effect maʻamau, 'o ia hoʻi, hoʻokahi wale nō ala e huki ai i ka ea a abrasive e kahe i ka ʻāpana palahalaha pololei.

1.2 Nozzle venturi puka lua

E like me ka mea i hōʻike ʻia ma ke kiʻi ma luna, aia ʻelua nozzles i hoʻopili ʻia me kahi āpau ma waena o lākou. ʻEwalu mau puka liʻiliʻi a puni ka ʻāpana e hoʻomaʻamaʻa i ka huki ʻana i ka ea a puni i loko o ka nozzle, kahi e hoʻokuʻu ʻia ai ka ea i ʻoi aku ka nui ma mua o ka ea paʻa i huki ʻia i ka nozzle, no laila e hoʻomaikaʻi ʻia ka wikiwiki o ka abrasive e alakaʻi i ka hoʻomaʻemaʻe ʻana i ka ʻili.

2. Hoʻokaʻawale ʻia e nā mea liner

ʻO nā mea kaulana ʻekolu i hoʻohana ʻia i kēia lā no nā nozzles blast he boron carbide, silicon carbide, a me tungsten carbide.

2.1 Boron carbide venturi nozzle

Hōʻike ka nozzle Boron carbide i ka paʻakikī kiʻekiʻe, ka ʻaʻahu maikaʻi loa, a me ke kūpaʻa abrasion. Mai ka nana aku, he malamalama nawaliwali iki.

2.2 Silicon carbide venturi nozzle

ʻO ka nozzle carbide silikoni ke ʻano o nā waiwai kemika paʻa a me ke kūpaʻa ʻaʻahu maikaʻi. Ua like like ka ili o ka nozzle carbide silicon me ko ka boron carbide. I ka hoʻohālikelike pono ʻana, ʻoi aku ka pōʻeleʻele o ka carbide silika me ka noʻonoʻo ikaika. ʻO kona pōmaikaʻi, hiki iā ia ke hoʻoheheʻe maʻalahi i nā ʻano like ʻole, a he haʻahaʻa ke kumu kūʻai, ʻoiai ʻo ke kūpaʻa ʻana he 1/3 a 1/2 o nā nozzles kaomi wela.

2.3 ʻO ka nozzle tungsten carbide venturi

Hōʻike ka nozzle tungsten carbide i ka paʻakikī kiʻekiʻe, ke kūpaʻa aahu maikaʻi, a me ka hale paʻa e pono ai ka liʻiliʻi o ka mālama. He koho hou ia no nā mea hoʻoheheʻe ʻana no ka mea ʻoi aku ka maikaʻi o ka lōʻihi a me ka lole i ka wā e hoʻohana ai i ka abrasive paʻakikī.

3. Hoʻokaʻawale ʻia e ke kaula

Hiki ke hoʻokaʻawale ʻia i loko o ka milo koʻikoʻi a me ka milo maikaʻi.

3.1 Uila 2”-4 1/2 U.N.C.

ʻOi aku ka ʻokoʻa ma waena o kēlā me kēia milo, e hōʻike ana he kūpono ia