CNSME

Thepompa madzindi mpope umene umatulutsa chisakanizo cha zolimba ndi madzi. Choncho, sing'angayo idzakhala yopweteka kumadera oyenda a pampu ya slurry. Chifukwa chake, mbali zoyenda zapampu za slurry ziyenera kupangidwa ndi zinthu zosagwira ntchito.

Zida zachitsulo zomwe zimagwiritsidwa ntchito kwambiri papampu za slurry zimagawidwa kukhala chitsulo choponyedwa, chitsulo cha ductile, chitsulo chapamwamba cha chromium, chitsulo chosapanga dzimbiri, ndi zina zotero. Chitsulo chokwera kwambiri cha chromium ndi m'badwo wachitatu wazinthu zosavala zomwe zimapangidwa pambuyo pa chitsulo choyera choyera komanso chitsulo cholimba cha nickel. Chifukwa cha mawonekedwe a chitsulo chosungunuka cha chromium, chimakhala cholimba kwambiri, kutentha kwambiri, kukana kutentha, komanso kukana kuvala kuposa chitsulo wamba. Chitsulo chokwera kwambiri cha chromium chatamandidwa ngati chida chabwino kwambiri chothana ndi abrasive m'nthawi yamakono, ndipo chakhala chikugwiritsidwa ntchito kwambiri tsiku ndi tsiku.

Muyezo wa dziko la China wa chitsulo choyera chosamva kuvala (GB/T8263) umanena za kalasi, kapangidwe kake, kuuma, njira yochizira kutentha, komanso mawonekedwe ogwiritsira ntchito chitsulo choyera cha chromium.

Muyezo waukulu wachitsulo chachitsulo cha chromium ku United States ndi ASTMA532M, United Kingdom BS4844, Germany DIN1695, ndi France NFA32401. Russia idapanga 12-15% Cr, 3-5.5% Mn ndi 200mm makhoma opangira mphero ku Soviet Union wakale, ndipo tsopano akugwiritsa ntchito muyezo wa ҐOCT7769.

Zida zazikulu zomwe zimagwiritsidwa ntchito pazigawo zoyenda za mapampu a slurry kunyumba ndi kunja ndi chitsulo chosapanga dzimbiri, chitsulo chachitsulo cha chromium, ndi chitsulo cholimba cha nickel. Chitsulo chokwera kwambiri cha chromium ndichofunika kwambiri pazigawo zoyenda za mapampu amatope. Kupyolera mukusintha kapena kusankhidwa kwa milingo ya kaboni ndi chromium, kugwiritsa ntchito bwino kwa magawo oyenda pansi pamikhalidwe yosiyanasiyana yamakampani ndi migodi kumatha kupezeka.

High chromium cast iron ndiye chidule cha high chromium white anti-wear cast iron. Ndi zinthu zotsutsana ndi kuvala zomwe zimagwira ntchito bwino komanso chidwi chapadera; ili ndi kulimba kwapamwamba kwambiri kuposa chitsulo cha alloy komanso kulimba kwambiri ndi mphamvu kuposa chitsulo choyera. Panthawi imodzimodziyo, imakhalanso ndi kukana kwabwino kwa kutentha kwakukulu ndi dzimbiri, kuphatikizapo kupanga kosavuta komanso mtengo wotsika mtengo, ndipo imadziwika kuti ndi imodzi mwa zipangizo zabwino kwambiri zotsutsana ndi abrasive masiku ano.

Tsopano Mndandanda wa zida zapamwamba zachitsulo za chromium zotayidwa zimagwiritsidwa ntchito kwambiri:

Pampu za slurry zopangidwa ndi zinthu za A05 (Cr26) ndizomwe zimagwiritsidwa ntchito kwambiri pantchito zamigodi. Kapangidwe kakang'ono kapamwamba ka chromium alloy A05 kumawonetsa kuti imakhala ndi eutectic chromium carbides mumalo olimba kwambiri a marten. M'mapampu amatope omwe amawononga komanso owononga koma amamva kuwawa, magwiridwe antchito amtunduwu ndiwabwinoko kuposa zitsulo zina zoyera.

Ngakhale kuti mbali zonyowa zomwe zimapangidwa ndi zinthu za A07 (Cr15Mo3) zimakhala ndi kukana kuvala kwapamwamba, kuuma bwino, ndi moyo wautali wautumiki kuposa A05, mtengo wawo ndi wowirikiza kawiri wa A05, kotero kuti mtengo wamtengo wapatali ndi wochepa ndipo kuchuluka kwa ntchito kumakhala kochepa.

A49 (Cr30) kwenikweni ndi chitsulo chokwera kwambiri cha chromium chotsika cha carbon white cast. The microstructure ndi hypoeutectic ndipo imakhala ndi eutectic chromium carbides mu austenite / martensite matrix. Mpweya wochuluka wa chromium A49 ndi wotsika kuposa wa chromium A05 wapamwamba. Pali chromium yambiri m'matrix. M'malo a acidic ofooka, chromium A49 yapamwamba imakhala ndi kukana kwa dzimbiri kuposa chromium A05 yayikulu.

Pakalipano, zomwe tatchulazi ndizozitsulo zomwe zimagwiritsidwa ntchito kwambirislurry mapampu ogulitsa. Malinga ndi kukhazikika kwa sing'anga yonyamulidwa, tidzasankha zinthu zoyenera kwambiri.