Otu esi emegharị Ngwa Tungsten Carbide

A na-akpọkwa Tungsten carbide dị ka tungsten alloy, carbide cimented, alloy siri ike, na ígwè siri ike. Ngwá ọrụ carbide Tungsten na-ewu ewu na ụlọ ọrụ ọgbara ọhụrụ kemgbe 1920. Na gburugburu ebe obibi, imegharị ngwaahịa tungsten carbide na-apụta nke nwere ike ime ka ọnụ ahịa na-efunahụ ike. Enwere ike inwe usoro anụ ahụ ma ọ bụ usoro kemịkalụ. Usoro anụ ahụ na-emekarị bụ ịkwatu ngwá ọrụ tungsten carbide a chụpụrụ n'ime iberibe, nke siri ike ịghọta ma na-efu nnukwu ego n'ihi ike siri ike nke tungsten carbide ngwaọrụ. Ya mere, a na-achọpụtakarị ngwá ọrụ ịkpụzi tungsten carbide na usoro kemịkal. A ga-ewebata ụzọ kemịkal atọ --- mgbake zinc, mgbake electrolytic, na mmịpụta site na oxidation.

Zinc Iweghachite

Zinc bụ ụdị kemịkalụ nwere nọmba atọm 30, nke nwere isi agbaze nke 419.5 ℃ na isi isi nke 907℃. N'ime usoro mgbake zinc, a na-etinye ngwaọrụ ịkpụ tungsten carbide n'ime zinc gbazere n'okpuru gburugburu 650 ruo 800 ℃ mbụ. Usoro a na-eme na gas inert n'ime ọkụ eletrik. Mgbe zinc gbakere, a ga-agbaze zinc n'okpuru okpomọkụ nke 700 ruo 950 ℃. N'ihi mgbake zinc ahụ, ntụ ntụ eweghachite fọrọ nke nta ka ọ bụrụ otu ntụ ntụ na-amaghị nwoke n'oke.

Electrolytic mgbake

N'ime usoro a, enwere ike gbazee ihe nkedo cobalt site na iji electrolyzing scrap nke tungsten carbide ịkpụcha ngwaọrụ iji nwetaghachi tungsten carbide. Site na mgbake electrolytic, a gaghị enwe mmetọ na carbide tungsten a napụtara.

Mwepụta site na Oxidation

1. Tungsten carbide scrap kwesịrị gbarie site na ngwakọta na oxidizing agents iji nweta sodium tungsten;

2. Enwere ike iji mmiri na-edozi sodium tungsten na ahụmahụ filtration na mmiri ozuzo iji wepụ ihe ndị na-adịghị ọcha iji nweta sodium tungsten dị ọcha;

3. Tungsten sodium dị ọcha nwere ike imeghachi ya na reagent, nke nwere ike igbari na ihe mgbaze organic, iji nweta ụdị tungsten;

4. Tinye mmiri mmiri amonia ngwọta wee wepụ ọzọ, anyị nwere ike nweta ngwọta ammonium poly-tungstate;

5. Ọ dị mfe ịnweta kristal ammonium para-tungstate site na ikpochapụ ngwọta ammonium poly-tungstate;

6. Ammonium para-tungstate nwere ike calcined wee belata site hydrogen iji nweta tungsten metal;

7. Mgbe carburizing na tungsten metal, anyị nwere ike nweta tungsten carbide, nke nwere ike arụpụtara n'ime dị iche iche tungsten carbide ngwaahịa.

Ọ bụrụ na ị nwere mmasị na ngwaahịa tungsten carbide ma chọọ ozi ndị ọzọ na nkọwa, ị nwere ike ịkpọtụrụ anyị site na ekwentị ma ọ bụ mail n'aka ekpe, ma ọ bụ zipu ozi US na ala nke ibe.