Cemented Carbide Sintered Waste Zvigadzirwa uye Chikonzero Ongororo

Cemented carbide ihupfu simbi yakagadzirwa muvira yekutsvaira kana hydrogen yekudzikisa muvira ine cobalt, nickel, uye molybdenum sechinhu chikuru che tungsten carbide micron-saizi poda yehurefu-kuoma refractory simbi.Sintering inhanho yakakosha mune simende carbide.Iyo inonzi sintering ndeyekupisa iyo poda compact kune imwe tembiricha, kuichengeta kweimwe nguva yenguva, wozoitonhodza pasi kuti uwane zvinhu zvine zvinhu zvinodiwa.Iyo sintering process yecemented carbide yakaoma kwazvo, uye zviri nyore kugadzira tsvina ine sintered kana ukasangwarira.Nhasi, Chuangrui Xiaobian achagovana newe yakajairika sintered tsvina uye zvikonzero.

1. Carbide sintered tsvina ndiyo yekutanga kupepeta
Kureva kuti, pamusoro peiyo simende carbide inopfuura nepakati pekutsemuka pamicheto, mabhomba ehondo kana kuputika, uye mumatambudziko akaomarara, madiki matete matehwe semakero ehove, anoputika kuputika, uye kunyange pulverization.Iyo peeling inonyanya kukonzerwa nekubatana kwekobalt mu compact, kuitira kuti kabhoni-ine gasi iparadze mahara kabhoni mairi, zvichikonzera kuderera kwesimba renzvimbo yekombiki, zvichikonzera peeling.

2. Chechipiri chinowanzoitwa cemented carbide sintered tsvina maburi
Pores pamusoro pe 40 microns anonzi pores.Zvinhu zvinogona kukonzera blistering zvinogona kugadzira pores.Mukuwedzera, kana pane kusvibiswa mumuviri wakasvibiswa usina kunyoroveswa nesimbi yakanyungudutswa, yakadai semapores makuru akadai se "unpressed", kana muviri wakasvibiswa une chikamu chakakomba chakasimba uye Kuparadzaniswa kwechikamu chemvura kunogona kuumba pores.

3. Chechitatu chakajairika simende carbide sintered tsvina chigadzirwa iblister
Kune maburi mune yakasimwa carbide alloy zvigadzirwa, uye convex curved nzvimbo dzinoonekwa pamusoro pezvikamu zvinoenderana.Chiitiko ichi chinonzi blistering.Chikonzero chikuru chekuputika ndechekuti muviri wakasvibiswa une gasi rakawanda.Kazhinji kune marudzi maviri: imwe ndeyokuti mhepo inounganidza mumuviri wakasvibiswa, uye panguva ye sintering shrinkage process, mhepo inofamba kubva mukati kuenda kumusoro.Kana pane kusvibiswa kweimwe saizi mumuviri wakanyoroveswa, senge alloy scraps, iron scraps, uye cobalt scraps, mhepo inonangana pano.Mushure mekunge mutumbi wakasvibiswa waonekwa muchikamu chemvura uye waiswa densified, mweya haugone kuburitswa.Matuzu anoumba panzvimbo diki.

Chechipiri ndechekuti kune kemikari inokonzeresa iyo inoburitsa huwandu hukuru hwegasi mumuviri wakasvibiswa.Kana paine mamwe maokisi mumuviri wakanyoroveswa, anodzikiswa mushure mekunge chikamu chemvura chichiita sechiburitsa gasi, izvo zvinozoita kuti chigadzirwa chitubu;WC-CO alloys anowanzo umbwa Inokonzerwa nekuunganidzwa kweokisidhi mumusanganiswa.

4. Kunewo sangano risina kuenzana: kusanganisa

5, uyezve pane deformation
Shanduko isina kurongeka yemuviri we sintered inonzi deformation.Zvikonzero zvikuru zvekugadzirisa ndezvizvi zvinotevera: kugoverwa kwehuwandu hwema compacts hakusi yunifomu, nokuti kuwanda kweiyo yakapedzwa alloy yakafanana;iyo sintered muviri inoshaikwa zvakanyanya mucarbon munharaunda, nekuti kushaikwa kwekabhoni kunoderedza chikamu chemvura zvishoma;kutakura chikepe hakuna musoro;iyo backing plate haina kuenzana.