Ua hāʻule nā ​​kumukūʻai ʻōpala tungsten carbide US i ka pae haʻahaʻa loa i loko o nā makahiki he ʻumi ma waena o ka emi ʻana o nā kumukūʻai ammonium paratungstate (APT) a me nā puke nui o nā puʻupaʻa a me nā ʻōpala tungsten carbide inventory.

ʻO ka hōʻemi ʻana i nā kumukūʻai APT i nā pule i hala iho nei e hōʻemi i ka hoʻihoʻi ʻana i nā mea concentrate mai ka ʻōpala tungsten carbide ma o ka hāʻawi ʻana i kahi mea hānai kumu kūʻai haʻahaʻa no nā huahana tungsten.

Ke hele mai nei ka mākeke carbide scrap US mai kahi manawa o ka hana kiʻekiʻe kiʻekiʻe a ʻoiai ke emi nei ka noi no nā mea hana carbide.ʻO ka hoʻonui nui ʻana o ka lawe ʻana mai o ka carbide i hoʻonui i nā mea waiwai kūloko, ʻoiai ke emi nei nā mea hoʻoikaika waiwai e hoʻohana i kēia mau huahana.

ʻO ka awelika o nā kumukūʻai kūʻai aku i kēlā me kēia mahina mai Kina no APT i Iulai i hōʻea i nā pae haʻahaʻa loa i loko o ʻelua mau makahiki ma $197-207/mtu.Ua hāʻule nā ​​kumukūʻai he 23 pakeneka mai ka awelika o ke kumukūʻai mahina o $ 255-265 / mtu i Ianuali 2019.

Ua hāʻule nā ​​​​kumukūʻai kūʻai kūʻai ʻana o US no nā mea hoʻokomo tungsten carbide a me nā pōʻai i $5.00-6.00/lb i ʻAukake mai $7.25-8.25/lb i hoʻokahi mahina ma mua.ʻO ka hāʻule ʻana o 29pc ke kumu kūʻai haʻahaʻa loa no nā pōʻai carbide a hoʻokomo mai ka hopena o Ianuali 2009.

Ua ʻōlelo ka poʻe kaʻina hana ʻaʻole e hana hou ʻia ka ʻōpala carbide no APT ma nā helu like ma mua o nā makahiki i hala ma muli o ka nele o ka noi mai nā mea kūʻai aku a me nā mea kūʻai aku ma waho. nā mea mai ka ʻōpala carbide no ke kūʻai hou ʻana.ʻOiai ke koi ʻia e ka APT i lawe ʻia mai, ʻaʻole e hoʻōki ka poʻe hoʻohana hou i ka carbide i ka hana ʻana e kūʻai i ka APT ma kahi o ka hoʻomaʻemaʻe ʻana i ka ʻōpala no ka mea.