1.Analysis o welding defects o PE paipu wela hehee welder

Hoʻohana ʻia ka mīkini hoʻoheheʻe wela hoʻoheheʻe PE paipu i ka hoʻokomo ʻana i kahi papahana pūnaewele paipu.ʻOi aku ke anawaena o ka paipu wai nui ma mua o 63mm a ʻoi aku ka mānoanoa o ka pā ma mua o 5mm.I ke kaʻina hana o ka hoʻopili ʻana i ia mau mea paipu, ʻo ka nui o ke kaomi wai o ka pūnaewele paipu i loko o 60m, a hiki ke nānā ʻole ʻia ka pololei o ka welding.Eia naʻe, ma ka hana kūpono, ma muli o ka mauna. koi hana.

1) Nā hemahema i ka hana ʻana i ka welding.

Ma keʻano laulā, ʻo nā hemahema o ka hui pū ʻana ma muli o ka deviation i ka crimping geometry a me ka hoʻolālā, ʻaʻole hiki ke hoʻokō i nā koi kūpono.

ʻO ka mea mua, inā loaʻa nā stains a i ʻole nā ​​​​mea ʻē aʻe ma ke alo hope o ka welding, e alakaʻi ia i ka deviation o ka mānoanoa o ka paia welding ma nā ʻaoʻao ʻelua.I ka hihia o ka hoʻomehana ʻole, aia ka asymmetry a puni ka interface welding, a ʻaʻole hiki i ka nui ke hoʻokō i nā lula pili, e like me ka notch, gap a me nā hemahema ʻē aʻe.

ʻO ka lua, inā pulu ka maka hope o ke awa kuʻihao i ka wā wili, ʻaʻole maopopo a paʻa ke kuʻi awa;A i ʻole he mahu wai, kahi e alakaʻi ai i nā pilikia maikaʻi o ka welding a me nā ala leakage.

ʻO ke kolu, inā ʻaʻole i hoʻokō ka ovality o nā paipu welded i nā lula pili, ʻaʻole hiki ke hōʻoia i ka hilinaʻi o ka hui butt, a e kū mai ka pilikia o ka misalignment.

ʻO ka hā, inā e haʻalele ka hahau paʻa, a i ka wā e hoʻoheheʻe ai, ua haʻahaʻa ka mahana docking a me ke kaomi a pōkole ka manawa kuʻi, e hoʻemi ʻia ka maikaʻi o ka pilina.Inā wikiwiki ka wikiwiki o ka mea hoʻopili, a i ʻole ke kiʻekiʻe o ka mahana a me ke kaomi, ʻoi aku ka kiʻekiʻe o ke kiʻekiʻe o ka wiliwili a ākea paha, e hoʻemi ana i ka ʻāpana kahe wai a hoʻemi i kāna kahe hoʻolālā.

2) pilikia micro defect.

ʻO nā hemahema Micro nā pilikia maikaʻi i ka interface welding, e like me nā māwae, nā māwae, ke komo maikaʻi ʻole, etc.

ʻO ka mea mua, inā ʻilihune ka maikaʻi o ka hoʻoheheʻe wela i hoʻohana ʻia e nā ʻenehana kūkulu hale a i ʻole he ʻokoʻa o ka kahe kahe, e hoʻemi ʻia ka maikaʻi o ka hui pū ʻana o nā paipu.No ka laʻana, inā ʻoi aku ka nui o ka hoʻokaʻawale ʻana o ka kahe kahe ma mua o 0.6g/10min, e kū mai ana ka hemahema o ka wiliwili.Inā haʻahaʻa ka wela hoʻoheheʻe ʻana a i ʻole ka pōʻino o ka hoʻoheheʻe ʻana, e loaʻa pū kekahi mau māwae a me nā māwae.

ʻO ka lua, i ka hana maoli, ʻaʻole like nā maka hope o ka pipeline, a ʻaʻole i hoʻopaʻa piha ʻia nā maka hope ma ka hoʻohana ʻana i ka pā wela, e hopena i ka maikaʻi ʻole o ka kuʻi ʻana.

3) Nā hemahema microscopic.

I ka hana wili maoli, ma muli o ke kiʻekiʻe o ka wela wela a i ʻole ka lōʻihi o ka hoʻomehana ʻana, e oxidized a pōʻino ka paipu.I nā hihia koʻikoʻi, hiki mai ka carbonization, a ma hope o ka pōʻino waiwai.No nā hemahema welding, pili nā pilikia like ʻole.Inā nele nā ​​mea hoʻokele a me nā ʻenehana i ka hiki a me ke kuleana

ʻO ka manaʻo o ke kuleana, ka hiki ʻole ke hoʻokō i nā hana kūpono e like me ka hana ʻana o nā mea hana a me nā koi welding e hoʻemi mālie i ka maikaʻi o ka ʻenehana welding.