Sodium-based bentonite poponya

Bentonite ndi wapadera mchere dongo ndi mamasukidwe akayendedwe, kutambasuka, lubricity, mayamwidwe madzi ndi thixotropy ndi makhalidwe ena, ntchito anaphimba kuponya zipangizo, pellets zitsulo, zokutira mankhwala, kubowola matope ndi kuwala makampani ndi ulimi m'madera osiyanasiyana, kenako chifukwa lonse. ntchito, lotchedwa "dziko lonse lapansi", pepalali makamaka kukambirana ntchito ndi udindo wa bentonite poponya.

Mapangidwe a bentonite
Bentonite imapangidwa ndi montmorillonite molingana ndi kapangidwe kake ka kristalo, chifukwa kristalo yake yapadera imakhala yomatira mwamphamvu pambuyo pa kuyamwa kwa madzi, kotero imagwiritsidwa ntchito kwambiri poponya mchenga, mchenga umagwirizanitsidwa pamodzi kuti ukhale wolimba mphamvu ndi pulasitiki, ndi mphamvu youma pambuyo poyanika.Pambuyo pa bentonite youma, mgwirizano wake ukhoza kubwezeretsedwa mutatha kuwonjezera madzi.

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Kugwiritsa ntchito bentonite pakuponya

Ubwino wa bentonite ndi wofunika kwambiri kwa kupanga castings mu kuponyera, ndi khalidwe la bentonite ali kwambiri chikoka padziko ndi mkati khalidwe castings.Kugwiritsa ntchito apamwamba bentonite mu ntchito kuponyera kwambiri kuonjezera mphamvu, toughness ndi mpweya permeability wa castings, kuchepetsa madzi okhutira akamaumba mchenga, mogwira bwino pamwamba pa mapeto ndi kulondola kwa castings, ndi kuthetsa mavuto wamba khalidwe padziko lapansi. zoponyera, monga: kutsuka mchenga, kuyika mchenga, dzenje la mchenga, mchenga womata, pores, mabowo ogwa ndi zolakwika zingapo.Masiku ano mofulumira mafakitale chitukuko, bentonite monga dongo kukonzekera kuponya akamaumba mchenga akadali yokonda akamaumba zinthu mu makampani kuponyera.

Bentonite ili ndi zofunikira zama mafakitale pakuponya
The mamasukidwe mamasukidwe akayendedwe a bentonite ndi chinsinsi kuyeza khalidwe la bentonite kwa kuponyera, amene amafuna mkulu chiyero cha montmorillonite, chabwino tinthu kukula (95% kupyolera 200 mauna sieve), ndi ndondomeko kukonza sodium, kuti pang'ono akamaumba mchenga. akhoza kupeza mkulu chonyowa compressive mphamvu.

Udindo wa bentonite pakuponya

(1) Ntchito ngati kuponyera akamaumba mchenga binder
Bentonite ali ndi mamasukidwe aakulu kwambiri, pulasitiki mkulu, mphamvu zabwino, mtengo wotsika, ndipo akhoza kupanga kuponya akamaumba mchenga mwamsanga formable.

(2) Wonjezerani pulasitiki ya ma castings
Ntchito ngati kuponyera mchenga binder zakuthupi, bentonite akhoza kusintha plasticity wa castings, ndipo angathe kuteteza zofooka kupanga za castings, monga: zingalepheretse kuphatikizika kwa mchenga, zipsera, mtanda akuponya, mchenga kugwa.

(3) Kugwiritsanso ntchito bwino komanso mtengo wotsika
Posankha zitsanzo, timalimbikitsa kugwiritsa ntchito bentonite yopangidwa ndi sodium, chifukwa zizindikiro za bentonite zochokera ku sodium zimakhala zamphamvu kwambiri kuposa bentonite ya calcium, monga: kukana kutentha ndi kukhazikika chifukwa cha bentonite yochokera ku calcium.Choncho, ngakhale sodium bentonite thumba kwathunthu utakhazikika ndi zouma pa kutentha ndi mkulu, akadali ndi mphamvu adhesion mphamvu pamene madzi anawonjezera pa nthawi yachiwiri, ndipo akhoza kupitiriza ntchito ngati kuponyera akamaumba mchenga binder, chifukwa cha mphamvu zake zogwiritsanso ntchito komanso zotsika mtengo, kotero bentonite ya sodium imasankhidwa koyamba ngati chinthu chokondedwa pakuponya.

(4) Mlingo ndi wochepa, ndipo mphamvu ya kuponyera ndi yayikulu
Bentonite ali amphamvu adhesion ndi zochepa mlingo, kuwonjezera 5% apamwamba sodium ofotokoza bentonite kuponya mchenga akhoza kwambiri kuchepetsa matope zili kuponya mchenga, makamaka Mwina madzi mayamwidwe zinthu, phulusa ndi porosity mu akamaumba mchenga adzakhala kuchepetsedwa moyenerera, ndipo mphamvu ya kuponyera idzakulitsidwa kwambiri.

(5) Kupititsa patsogolo zotuluka ndi zopindulitsa zachuma zamabizinesi oyambira
Pamene ntchito apamwamba bentonite kubala castings, ogwira bentonite zili 5% ~ 6% mu mchenga wakale ndi zokwanira, ndi 1% ~ 2% akhoza kuwonjezeredwa nthawi iliyonse kusakaniza.Toni iliyonse ya bentonite yapamwamba imatha kupanga 10 ~ 15 t castings pamzere wopanga makina.
Chabwino, ntchito ndi udindo wa bentonite mu kuponyera zonse anayambitsa pano, ine ndikuyembekeza inu angatanthauze izo mukamvetsa bentonite, Mipikisano cholinga sanali zitsulo mchere dongo, mu kuphunzira mozama.

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