Graphite fillers ngu ai gaw graphite hte hpawng de da ai bungli galaw ai arung arai ni rai nna, kaga karum shingtau ai arung arai ni hte hpaw nna, kaga karum shingtau ai arung arai ni hte hpawng de da ai. Dai ni hpe sealing, sau htu ai, wan n-gun, n-gun n-gun n-gun n-gun ni hta grai lang ma ai. Shanhte a core performance gaw shanhte a madung daw ni a composition hte ratio hta madung nga ai, grau nna graphite hkum nan a quality hte dai hta grau nna jat bang da ai additives ni hta madung nga ai.
Graphite: Graphite Fillers ni a madung hpawng de ai lam
Graphite gaw graphite filler ni a madung daw rai nga ai, laksan hku nna 60% kaw nna 95% du hkra lawm ai, application ra ai lam ni hta hkan nna, laksan shadawn shadang ni lawm ai. Shingra tara hte synthetic graphite lahkawng yan hpe raw material hku lang mai ai, raitim shanhte a microstructures hte properties ni gaw n bung ai. Natural graphite (flake graphite zawn re ai) gaw, n-gun kya ai interlayer bonds ni lawm ai layered crystal structure nga ai, dai gaw delaminate galaw na matu loi ai, dai majaw, grai kaja ai self{4}}}lubrication byin wa ai. Dai hte nhtan shai ai hku nna, synthetic graphite ( high{6}} a n-gun n rawng ai petroleum coke{7}}based graphite zawn re ai ni) gaw, madung hku nna grau san seng ai hte, n-gun n rawng ai lam ni hpe n-gun n rawng ai majaw, n-gun ja ai chemical stability ra ai application ni a matu htuk manu ai.
Graphite a kaja dik ai atsam ni gaw core filler langai mi hpe shabyin ya ai:
1.
Tinang hkum tinang-lu galaw ai lam: Graphite layers ni gaw langai hte langai lapran loi loi hte hprawng mat wa nna, hka lim ai aten hta n-gun yawm mat ai (sh) n-gun yawm ai n-gun yawm ai lam hpe shayawm ya ai.
2.
Nbung laru kaba hpe ninghkap lu ai atsam: Graphite gaw nbung hta 450℃daram du hkra n-gun n rawng ai gas hta 3000℃jan du hkra galaw lu ai.
3.
Chemical Stability: Graphite gaw chemical media law malawng hpe kaja ai hku ninghkap lu ai atsam hpe madun dan ai, n-gun ja ai oxidizing acid (ga shadawn, nitric acid hte sulfuric acid ni hpe shinggyin la lu ai) hpe lai nna.
4.
Hpaga lam: Graphite gaw grai kaja ai electronic hku galaw lu ai majaw, conductive sealing (sh) antistatic application ni a matu htuk manu ai.
Hkamja lam hte seng ai arung arai ni: Yawng hkra galaw ai lam hpe grau kaja hkra galaw na matu ahkyak ai
graphite gaw madung daw rai tim, pure graphite fillers ni gaw, bungli galaw ai masa ni a ra sharawng ai lam ni hpe hkap la na matu yak hkak chye ai. Dai majaw, shanhte a bungli hpe grau kaja hkra galaw na matu, karum shingtau ai arung arai ni hpe law law lang jat bang ma ai. Auxiliary ingredients ni hta lawm ai:
1. Binders (resin, rubber, shing nrai, magri oxides zawn re ai ni)
Binders ni gaw graphite filler ni a jak n-gun hte n-gun hpe jat ya ai majaw, galaw shapraw ai ladat amyu myu (molding, extrusion, or imregnation zawn re ai) ni a matu htuk manu ai. Ga shadawn:
• Resin binders (phenolic resin hte epoxy resins zawn re ai): Shanhte gaw filler a n-gun ja ai lam hte chemical hpe ninghkap lu ai atsam hpe jat ya ai majaw, static sealing galaw na matu htuk manu ai.
• Rubber binders ( nitrile rubber hte fluororubber zawn re ai): Reciprocating (sh) rotary seals ni a matu htuk manu ai, n-gun ja ai hte n-gun ja ai sealing galaw ai lam hpe jat wa shangun ai.
• Metal oxides (zinc oxide hte aluminum oxide zawn re ai ni): Nbung n-gun hpe jat ya lu nna, n-gun kaba ai- aten ladaw hpe hkam sharang lu ai.
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graphite filler ni a jak rung a n-gun hte n-gun hpe n-gun ja hkra galaw na matu, n-gun ja shangun ai n-gun ni hpe law law lang jat bang ai. Ga shadawn:
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• Glass fiber: Manu n law ai hte filler a myi prwi hpe grau kaja hkra galaw ya ai.
• Aramid fiber: Grai n-gun ja ai n-gun hte tensile n-gun hpe jaw ya ai, grai sawng ai bungli galaw ai masa ni a matu htuk manu ai.
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Nkau mi gaw, tsaw ai-load (sh) npu na-speed fraction application ni hta, graphite gaw sau law law n jaw lu ai majaw, kaga ngang kang ai sau ni hpe jat bang da ai:
• Molybdenum Disulfide (MoS€): graphite hte rau law law lang lang ai, nbung laru kaba hte n-gun kaba ai npu hta grai kaja ai bungli galaw ai lam.
• Polytetrafluoroothylene (PTFE): Grai n-gun n law ai coefficient nga ai rai nna, n-gun n law ra ai sealing application ni a matu htuk manu ai.
Laksan Graphite Fillers ni hpe galai shai ai lam
Graphite filler ni a composition hpe n bung ai application ni hte htap htuk hkra galaw mai ai:
• Corrosion- Resistant Graphite Fillers: Acid hte alkali ni hpe ninghkap lu ai atsam hpe grau kaja hkra, nickel hte gumhpraw zawn re ai hkum hkrang n-gun ni hpe jat bang ai.
• Hkrang nsam hpraw ai shara ni: Graphite san seng ai lam hpe jat wa nna, magri hka htung (sh) carbon nanotubes ni hpe jat bang nna, n-gun jat wa hkra galaw ai.
• High-Purity Graphite Fillers: High-purity (>99%) synthetic graphite hpe jai lang nna, n san seng ai lam ni hpe shayawm na matu, semiconductor hte nuclear hpaga lam ni a ra kadawn ai lam ni hpe hkan sa ai.
Graphite fillers ni gaw madung hku nna graphite hte hpawng de da ai rai nna, bungli galaw ai lam hpe hpaji masa hku nna, binders, n-gun ja shangun ai n-gun ni, ngang kang ai sau ni zawn re ai arung arai ni hpe grau kaja hkra galaw ai. Hpang jahtum na bungli galaw ai lam gaw, graphite amyu (shingra tara (sh) synthetic), shi a san seng ai lam, hte composite components ni hpe lata ai lam ni hta madung nga ai. Industrial hpaji masa hta rawt jat wa ai hte maren, graphite fillers ni a hpawng de ai lam gaw, nbungli, n-gun atsam hte tsi mawan ni a n-gun ja ai ra kadawn ai lam ni hpe hkap la lu na matu, grau nna gram lajang wa na re.
