Plastic extruders ni gaw plastic ni hpe galaw ai bungli hta madung arung arai ni rai nna, shanhte a ngang grin ai bungli gaw, galaw shapraw ai atsam hte arung arai ni a hkamja lam hpe hkrak hkra machyi shangun ai. Raitim, galu kaba ai{1}} aten galu ai majaw, nbung laru kaba, n-gun kaba ai, n-gun kaba ai majaw, extruder ni gaw n mai koi yen ai sha, jak rung hkrat sum ai lam amyu myu (sh) bungli galaw ai lam hpe hkra machyi shangun ai. Dai majaw, hpaji masa hpe gram lajang ai ladat ni hte gram lajang ai ladat ni hpe atsawm chye na hkra galaw na matu hte galaw shapraw ai manu hpe shayawm na matu ahkyak nga ai. Ndai laika hta, masha langai hte langai a mara hpe jep chyoi ai, ahkyak ai gram lajang ai ladat ni, hte n-gun jaw ai lam ni hpe atsawm sha gram lajang na matu hpaji jaw na re.
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Plastic extruder n kaja ai lam ni hpe madung hku nna madung amyu masum hku garan ginhka mai ai: jak rung, wan n-gun, hte galaw sa wa ai lam ni hpe galaw mai ai. Mechanical n kaja ai lam ni hta screw hpun ai, hkam sharang ai lam ni, kap bra ai lam hpe n kaja ai hku galaw ai lam ni lawm ai. Wan n-gun hta n-gun grai ja ai, hkang zing ai circuit hkrat sum ai, shing nrai inverter n kaja ai lam ni law law nga ai. Process manghkang ni gaw, nbung laru hpe hkang lu ai atsam, n-gun galai shai ai, shing nrai, n bung ai hku shapraw ai lam ni hku nna dan dawng wa ai.
Fault ana hpe jep chyoi na matu masum ngu na lahkam ra ai: "Matut nna yu yu na- Analyze." Shawng nnan, hka lim ai, n bung ai nsen ni, shing nrai, component deformation ni hpe yu nna yu u. Lahkawng, ahkyak ai arung arai ni a katsi ai lam hte n-gun hpe yu reng na matu, infrared thermometers hte vibration ana hpe sawk sagawn ai ni hpe lang u (atse dung shara hte gearbox ni hpe lang ai zawn re ai). Hpang jahtum, n kaja ai lam a npawt nhpang hpe tup hkrak chye na lu na matu, process parameters (tultt temperature hte extrusion pressure zawn re ai) ni a galai shai wa ai masa ni hpe sawk sagawn yu u. Ga shadawn, extruder gaw n-gun n rawng ai mawdaw current hte rau n-gun n rawng ai hka pru ai lam hpe hkam sha ai rai yang, ndai gaw screw bu hpun ai (sh) n bung ai malu masha ni a majaw rai na re, dai majaw, matut nna garan ginhka nna jep joi ai lam galaw ra ai.
II. Plastic Extruder hpe gram lajang na matu ahkyak ai hpaji masa ni
Madung ni a gram lajang ai lam hte galai shai ai lam
Screw hte barrel gaw extruder a madung daw ni rai nna, shanhte a hpun palawng gaw plasticizing effect hpe hkrak hkra machyi shangun ai. Screw ntsa na n-gun gaw 0.5mm jan ai (sh) n-gun n rawng ai rai yang, screw hpe hard alloy overlay welding (sh) galai shai ai hku nna gram lajang ra ai. Barrel bunghku hpe bu hpun ai rai yang, hkrak ai lam hpe boring hte n-gun n rawng ai hku bai gram lajang mai ai- hpe n-gun n rawng ai hpun ni hpe jung mai ai. Dai hta n-ga, transmission system hta na gear ni hte bearing ni hpe gaw, sau hpe ayan jep yu ra ai. Pitting (sh) grai law ai bearing clearance hpe mu yang, n-gun n rawng hkra kalang ta galai ra ai.
Hka lum ai hte katsi ai ladat ni hpe gram lajang ai lam
Temperature hpe hkang ai lam gaw, n-gun n rawng ai ni a n kaja ai lam langai mi rai nga ai. Hkamja lam hpe gram lajang ai aten hta, heater coil a ninghkap ai lam hpe jep yu na matu myit maju jung u (±10% hta jan ai n bung ai lam yawng hpe galai ra ai), nbung laru hpe hkang ai a PID parameters ni, hte katsi ai shara kaw na carbon dat bang ai lam ni hpe jasan jaseng ai lam ni hpe galaw na matu. Scale gaw katsi ai hka line hpe pat kau yang, katsi ai hpe shayawm kau lu ai atsam hpe shayawm kau lu ai majaw, acidic cleaning agent hpe hpaw dat u. Bai nna, hka pump a n-gun gaw madang hte maren hkan sa ai hpe mung jep yu u (galaw madang gaw 0.3 MPa hta grau kaba ai (sh) maren sha re).
Electrical Control System hpe hparan ai lam
Dai ni na aten na extruder ni hpe PLC (sh) touchscreen hpe hkang ai ladat ni law law lang lang ai. Ndai system ni hpe gram lajang ai shaloi, n kaja ai matut mahkai lam hpe n-gun jaw ai hte sensor signal cable ni hpe shawng jep yu nna, control signal a ngang grin ai lam hpe jep yu na matu oscilloscope lang nna, oscilloscope lang nna, n-gun n rawng ai hpe jep yu u. Inverter hkrat sum ai lam ni a matu, cooling fan gaw kaja wa bungli galaw nga ai hpe yu nna, rated motor parameters ni hte bung hkra galaw na matu output frequency hpe calibrate galaw u.
III. Plastic Extruder ni a matu shani shagu gram lajang ai lam hte makawp maga ai lam ni
N myit mada ai hkrat sum ai lam ni hpe shayawm lu na matu, makawp maga ai lam hpe makawp maga ai lam gaw ahkyak dik rai nga ai. Lahta na bungli galaw ai ladat ni hpe hpaji jaw da ai:
Regular Cleaning hte Lubrication: Barrel feed port kaw na ngam ai ngam ai arai ni hpe shift shagu hta n-gun n rawng hkra, pat shingdang ai lam ni hpe pat shingdang na matu. Hkamja lam hte seng ai daw ni hpe (aagebox zawn re ai) ni hpe gaw, hka lim ai lam hpe pat shingdang na matu, galaw shapraw ai ni a masat da ai hte maren, ayan na sau bang ra ai.
Parameter Monitoring and Recording: Real{0}} aten ladaw hpe n-gun, n-gun, hte main machine current data ni hpe ka matsing da ai hpe labau masa ni hpe shingdaw nna, byin mai ai anomalies ni hpe chye na lu na matu jai lang mai ai (ga shadawn, aten langai ngai hta n-gun ja ai nbung laru ni gaw, n-gun ja ai asak kaba wa ai hpe madun ai hpe madun ai).
Hka htung ni hpe jai lang ai lam: Stock gaw, mara langai byin wa ai shaloi, lawan ai hku bai htang lu na matu, jak rung bungli galaw ai aten hpe madung tawn nna, screw hte seals zawn re ai daw ni hpe ayan galai shai ai.
Plastic extruder hpe gram lajang na matu gaw, masat da ai lam ni hpe hkrak tup hparan ra ai hte, n-gun jaw ai lam hpe gram lajang ai lam hpe hpaji masa hku nna hparan ra ai, hkrang shapraw ai ladat langai rai nga ai. Standardized fault hpe jep chyoi ai ladat ni, gram lajang da ai daw ni hpe gram lajang ai ladat ni, hte n-gun rawng ai makawp maga ladat ni gaw, jak rung ni a kam hpa mai ai lam hte galaw shapraw ai lam matut manoi galaw ai lam hpe grai kaja hkra galaw ya lu ai. Company ni gaw, gram lajang ai magam gun ni a matu hpaji sharin hkam la ai lam hpe ahkyak shatai nna, hpaji rawng ai hku yu reng ai hpaji masa ni hpe bang ra ai (online vibration sawk sagawn ai lam hte AI{2} npawt nhpang mara hpe tau hkrau tsun ai zawn re ai) hpe grau kaja hkra galaw lu na matu.
