Asanapange nkhungu ndi pachimake, mchenga wokutidwawo waphimbidwa ndi kanema wolimba pamwamba pamchenga. Pulogalamu yachipolopolo nkhungu kuponyeraapangidwa kukhala mchenga wokutira pogwiritsa ntchito thermoplastic phenolic resin kuphatikiza othandizira obisika (monga urotropine) ndi mafuta (monga calcium stearate) kudzera munjira ina yokutira. Mchenga wokutidwa ukatenthedwa, utomoni wokutidwa pamwamba pamchenga umasungunuka. Motsogozedwa ndi gulu la methylene lomwe lawonongeka ndi Maltropine, utomoni wosungunuka umasinthasintha mwachangu kuchoka pamapangidwe olimba kupita ku thupi losawonongeka kuti mchenga wokutidwa ukhazikike ndikukhazikika. Kuphatikiza pa mchenga wokutidwa kwambiri, mulinso mchenga wokutidwa ndi wonyezimira.
▶ Lokutidwa mchenga kuponyera ali ndi makhalidwe otsatirawa
1) Ili ndi magwiridwe antchito oyenera. Ikhoza kukwaniritsa zofunikira za mchenga wamtengo wapatali wa mchenga, mchenga wotentha kwambiri, ndi mchenga wotsika kwambiri.
2) Kwambiri fluidity, moldability wabwino pachimake mchenga ndi autilaini, zomwe zingabweretse mitima zovuta kwambiri mchenga, monga mitima madzi jekete mchenga monga mitu yamphamvu ndi matupi makina.
3) Kutalika kwa mawonekedwe amchenga ndikwabwino, kophatikizana komanso kosasunthika. Ngakhale zokutira zochepa kapena zosagwiritsidwa ntchito, mawonekedwe apamwamba a castings amatha kupezeka. Kulondola kwazithunzi za castings kumatha kufikira CT7-CT8, ndipo kutalika kwa Ra kumatha kufikira 6.3-12.5μm.
4) Kugwira bwino ntchito, komwe kumathandizira kupukuta ndikuwongolera magwiridwe antchito
5) Msana wamchenga siwophweka kuyamwa chinyezi, ndipo mphamvu yosungira kwa nthawi yayitali sikophweka kuchepa, yomwe imathandizira kusungira, kuyendetsa komanso kugwiritsa ntchito
Processes Njira zopangira nkhungu zokutira mchenga (pachimake) zopangira kuponyera zipolopolo:
1. Njira yoyambira kupanga wokutira mchenga wokutira (pachimake) ndi: pepala kapena nkhonya mchenga → kutumphuka → kutaya kwa mchenga → kuumitsa → pachimake (nkhungu) ndi zina zotero.
1) Sinthani kapena kuwomba mchenga. Ndiye kuti, mchenga wokutidwa amathiridwa pachikombole cha chipolopolo kapena kuulowetsa m'bokosi lalikulu kuti apange chipolopolo kapena chipolopolo.
2) Kuphatikizika. Kukula kwake kwa chipolopolo kumayang'aniridwa ndikusintha kutentha kwanyengo ndi nthawi yogwira.
3) Kutulutsa mchenga. Pendeketsani nkhungu ndi bokosi loyambira kuti mchenga wokutidwa wosagundika ugwe kuchokera pachikopa cha mkangano, ndikuutolere kuti ugwiritsenso ntchito. Pofuna kuti zikhale zosavuta kuchotsa mchenga wokutidwa, ngati kuli kofunikira, njira yokhotakhota ingagwiritsidwe ntchito.
4) Kuumitsa. Pakutentha, kuti chipolopolocho chikhale chofanana kwambiri, chilumikizane ndi pamwamba pa chipolopolocho mkati mwa nthawi kuti muumitse.
5) Tengani maziko. Tengani mawonekedwe olimba ndi chipolopolo pachikombole ndi bokosi loyambira.
▶ Nkhono akamaumba Kutaya Zopangira:
• Cast Carbon Steel: Low Carbon Steel, Medium Carbon Steel ndi High Carbon Steel kuchokera ku AISI 1020 mpaka AISI 1060.
• Osewera Zitsulo kasakaniza wazitsulo: 20CrMnTi, 20SiMn, 30SiMn, 30CrMo, 35CrMo, 35SiMn, 35CrMnSi, 40Mn, 40Cr, 42Cr, 42CrMo ... etc pa pempho.
• Osewera zosapanga dzimbiri zitsulo: AISI 304, AISI 304L, AISI 316, AISI 316L ndi ena kalasi zosapanga dzimbiri.
• Pangani Alloys Aluminiyamu.
• Mkuwa & Mkuwa.
• Zida ndi Miyezo ina mukafunsidwa
Cap Mphamvu za Shell Casting:
Kukula kwa Max: 1,000 mm × 800 mm × 500 mm
• Kulemera Kwake: 0,5 kg - 100 kg
• Mphamvu Zapachaka: matani 2,000
• Kulekerera: Pakapempha.
