Liphephetso le litharollo bakeng sa lihlopha tse nyane tsa liodara tsa boleng bo holimo
Moreki oa Amerika Boroa o tobane le mathata a mabeli a maholo ts'ebetsong ea theko: e 'ngoe ke hore liphaephe tsa tšepe tse se nang sekoli tse hlokahalang li tlameha ho fihlela maemo a thataASTM A53/A53 GR.Bmaemo; e 'ngoe ke hore boholo ba theko ea lithane tse 17 ha boa ka ba fihlela litlhoko tse tlase tsa palo ea odara ea fektheri ea tšepe. Ho arabela boemo bona, k'hamphani ea rona e ile ea qala ka potlako marang-rang a bafani, ea bapisa mehloli ea libaka ka nepo, 'me ea fa bareki tharollo ea ho emisa hang ho tloha netefatsong ea litlhaloso ho isa ho phanong ea thepa ha ka nako e ts'oanang e netefatsa boleng ba thepa le ts'epo ea lets'oao.

"Bakeng sa diotara tse nang le ditlhoko tse hlakileng tsa letshwao le boleng, empa bongata ha bo fihlelle moedi wa phepelo e tobileng ho tswa ho difeme tsa tshepe, boleng ba rona bo hodima kopanyo e potlakileng ya mehlodi," ho boletse mookamedi wa rona wa kgwebo. "Diphaephe tse tloaelehileng tsa tshepe tse se nang moedi tsa A53 GR.B di sebediswa haholo masimong a oli, kgase le kaho, empa theko e nyane hangata e tobana le dintlha tse bohloko tsa nako e telele ya ho tlisa le dikanale tse mmalwa."

Hobaneng u khethaASTM A53 GR.Bliphaephe tsa tšepe tse se nang mohele?

Tšepahalo ea thepa: Tšepe ea khabone ea sehlopha sa GR.B e na le matla a ho thaepa a phahameng (≥415MPa) 'me e loketse litsamaiso tsa liphaephe tse mahareng le tse nang le khatello e phahameng.

Litekanyetso tsa ts'ebetso: Botenya ba lebota la SCH 40 bo fihlela maemo a mangata a jarang khatello, 'me bolelele bo tsitsitseng ba limithara tse 12 bo fokotsa li-node tsa ho tjheseletsa sebakeng seo.

Phano e potlakileng: bophara ba kantle ba 189mm-273mm bo akaretsa litlhoko tse tloaelehileng tsa bophara ba liphaephe, 'me lethathamo la libaka le tiisa tsoelo-pele ea merero ea tšohanyetso.

Tšebelisano-'moho ena e boetse e netefatsa bokhoni ba botsebi ba k'hamphani ea rona lefapheng la phepelo ea tšepe e khethehileng ea sehlopha se senyenyane. Nakong e tlang, re tla tsoela pele ho ntlafatsa sistimi ea phepelo ea ketane ea tšepe e se nang sekoli le ho fa bareki ba lefats'e ka bophara litharollo tsa liphaephe tse nang le maemo a mangata ho kenyeletsoaAPI 5LleASTM A106.