Cwalu lum: Cwalo lum ma pol kare jutiyo kudu i tic mi valve jucopo poko i kit lum matung tung calukweyo ma pii, kweyo ma muthwo, kweyo ma pii man kweyo ma furan resin ma juku ngonimakere ku binder matung tung.
(1) Green sand ubedo yore mi yubu piny ma bentonite tiyu kudu calu piny ma mako piny i tic. Kite pare utiye: sand mold ma judaru timo umitu ngo juyik nyo timo tic moko ma pire tek, sand mold utiye ku tego moko, man sand core ku shell utiye ku concessions maber, ma ber pi lwoko man podho sand. Tic mi yubu piny utiye malo, kare mi yubu piny utiye nyanok, man wel piny ma jutiyo kudu de utiye piny, ma ber pi yubu tic mi yubu piny. Peko pare utiye: castings copo bedu ku peko macalo pores, sand inclusions, man sticky sand, man ber pa castings, asaga ber pa iye, utiye bor ku romo.
(2) The sand ma muthwo ubedo yore mi yubu piny ma jutiyo kudu ku clay calu piny ma mako piny, man bentonite manok copo medo tego pa pii. Kite pare utiye: sand mold mitire ni jwigere, etiye ku yamo maber man yamo ma nyai, epe yot ni kelo peko calu sand washing, sand sticking, man pores, man kit ma iye pa casting de ber. Peko pare utiye: jam tic mi jwigo lum mitere, man kare mi yubu piny utiye malac.
(3) Sodium silicate sand ubedo yore mi yubu piny ma jutiyo kudu ku gilasi mi pii calu piny ma mako piny. Kite pare utiye: gilasi mi pii utiye ku tic mi bedo tek kende kende ingey nwangu CO2, man ecopu bedu ku bero matung tung man bero pa gas hardening modeling man core making. Ento, lembe moko marac nuti calu ve nyai ma nyai, peko mi yweyu lum pi castings, man rwom ma piny mi dwoko lum ma jutiyo kudu.
(4) Furan resin no-bake sand molding ubedo yore mi tiyo ku furan resin calu piny ma mako. I lyethu mi ot, lum ma juyubu ubedo maleng pi tic pa piny ma mako piny ma jucwalo. Kite pare utiye: sand mold umitu ngo juyik, ma dwoko kare mi yubu piny man gwoko kero. Resin molding sand yot ni mako man etiye ku collapsibility maber, man molding sand pa castings de ecopu bedu yot ni lwoko, rwom pa castings utiye malo, man surface finish utiye maber, ma copo medo ber pa castings. Peko pare utiye: piny ma mitere pi ber pa lum ma podi juyubu ngo de utiye malo, kabedo mi yubu ne utiye ku nguc ma nyayu anyonga, man bei pa resin de utiye malo. Yore mi rubu furan resin self-hardening sand: Resin self-hardening sand juyike ku sand mixer ma rwinyo, medu sand ma rwinyo, resin, curing agent, man mukende mapol, man rubu gi pio pio. Rub man iti ku sawa moko ci. Kite mi medu piny matung tung ma jutiyo kudu pi rubu resin sand utiye ma e: sand macon + curing agent (p-toluenesulfonic acid aqueous solution) – (120-180S) – resin + silane – (60-90S) – sand (5) Typical sand type Casting production process: precision casting.
Saa mi cwalo: Aug-17-2022
