Graphite filler, sɛ́ ade a ɛkorɔn-yɛ adwuma a wɔde hyɛ mu no, wɔde di dwuma kɛse wɔ nnuru, petroleum, ne anyinam ahoɔden adwumayɛbea ahorow mu. Ne su a ɛyɛ no nya ade no mu density, corrosion resistance, ne mfiri ahoɔden so nkɛntɛnso tẽẽ. Saa asɛm yi bɛka graphite filler forming nhyehyɛe no ne ne mfiridwuma mu nsɛm atitiriw ho asɛm kɔ akyiri.
Graphite filler forming processes titiriw ne sɛ wobɛmia, wobɛyi afiri mu, na woayɛ nhyɛsoɔ. Compression molding ne ɔkwan a wɔtaa fa so, a ɛfata ma powder anaasɛ graphite raw nneɛma. Saa adeyɛ yi de hydraulic anaa mfiri press di dwuma de fra graphite powder ne binder na afei wɔde mia no ma ɛyɛ nea wɔpɛ wɔ ɔhyew ne nhyɛso a ɛkorɔn ase. Wɔ adeyɛ a ɛma nneɛma mia no mu no, nhyɛso a ɛyɛ pɛ ho hia kɛse ma ade a etwa to no mu duru ne ahoɔden. Wɔtaa di nhyɛso so wɔ 10 ne 30 MPa ntam, na wɔma ɔhyew no kɔ so yɛ digrii 150 kosi 300 na ama binder no ayɛ mmerɛw na abɔ mu.
Extrusion molding fata ma graphite abaa anaa nsukorade a ɛkɔ so yɛ. Adeyɛ no bi ne nneɛma a wɔde fra nneɛma a wɔde yɛ nneɛma a wɔde yɛ nneɛma a wɔde yɛ nneɛma a wɔde yɛ nneɛma a wɔde yɛ nneɛma a wɔde yɛ nneɛma foforo, nea wɔde yiyi mu, nea wɔde yi fi mu, ne nea wɔde nwene. Wɔde graphite powder ne binder (te sɛ phenolic resin anaa asphalt) fra yiye wɔ kneader mu ma ɛyɛ plastic a ɛyɛ pɛ. Afei wɔde saa slurry yi fa die mu kɔ mmeamudua pɔtee bi mu-sectional shape. Extrusion molding hwehwɛ sɛ wɔyɛ nsunsu a ɛkorɔn na ama wɔatumi ayɛ slurry a ɛsen pɛpɛɛpɛ na wɔakwati mu sintɔ ahorow. Aduru a wɔayɛ no foforo no fa mu kɔ soro-temperature calcination de yi nneɛma a ɛyɛ hyew fi binder no mu na ɛma graphitization yɛ kɛse.
Compression molding fata ma complex-a wɔayɛ no sɛ graphite nsɔano, te sɛ gaskets anaasɛ annular packings. Nea ɛka saa adeyɛ yi ho ne sɛ wɔde graphite powder ne binder bɛfra mu wɔ ratio a ɛfata mu, ahyɛ afrafrade no ma ayɛ no dade nkuku a wɔadi kan ayɛ no hyew, na afei wɔde nhyɛso ahyɛ nkuku no mu denam press so. Ade titiriw a ɛma wotumi de nhyɛso ba ne sɛ wobɛhwɛ ɔhyew dodow so na woatra bere a wode bɛhwɛ sɛ emu yɛ den a ɛnyɛ delamination. Calcination temperatures taa yɛ 800℃ne 1200℃de ma graphite filler no kɔ soro-temperature resistance ne chemical stability.
Binder a wɔpaw no nso di dwuma wɔ graphite a wɔde hyɛ mu no mu. Nneɛma a wɔtaa de kyekyere nneɛma ho no bi ne resins, dade oxides, ne asphalt. Nneɛma ahorow a wɔde kyekyere nneɛma ho no nya ade no mu ɔhyew a ɛkɔ mu, sɛnea ɛko tia nsɛe, ne mfiri ahoɔden so nkɛntɛnso. Sɛ nhwɛso no, phenolic resin fata ma medium- na ɛba fam-temperature environments, bere a dade binders (te sɛ kɔbere powder) betumi ama filler no wear resistance ne thermal conductivity atu mpɔn.
Sɛ yɛbɔ no mua a, ɛsɛ sɛ wɔyɛ graphite filler molding nhyehyɛe no yiye a egyina raw material su, application ahwehwɛde, ne nnwinnade tebea so. Ɛdenam nhyɛso, ɔhyew, ne binder ratio a wobedi so pɛpɛɛpɛ so no, wobetumi ayɛ adwuma a ɛkorɔn-adwumayɛ graphite a wɔde hyɛ mu no ma adi mfiridwuma mu ahwehwɛde ahorow a ɛfa nsɛe ho-ɛko tia, a ɛkorɔn-temperature-ɛko tia, ne bere tenten-bere mu nsɔano ano aduru ho dwuma.
