Say proseso na panagproseso na saray plastik ya materyales et manunan say panagtunaw, panag-agus, tan panagpalemew na saray partikulo na goma pian magmaliw ya asumpal lan produkto. Saya so proseso na panagpainit insan panagpalemew. Saya met so proseso na panguman na plastik manlapud saray partikulo ya anggad nanduruman kurti. Say panagproseso et nipaliwawa manlapud panmoria na nanduruman yugtan na proseso.
1.Pantunaw
Say heater na device et mamaabuloy ed saray partikulo na raw material ya kalkalnan natunaw pian magmaliw ya fluid flow, ya manunan matukoy parad temperatura na nanduruman raw materials. Say pamarakep ed temperatura et mamapeles ed iyaagus na saray hilaw a materyales, ya nayarin mamarakep ed inkaepektibo balet ag makagarantiya na ani. Nepeg ya matukoy so Balanse to. Niarum ni, say maong ya epekto tan saray katangian na atagey ya thermal cracking na PP et mas maabig no gawaen ya maabig so iyagus na saray raw materials ed die legan na produksyon pian napaliisan so kulang ya filling odino backflow. Say kabaliksan na backflow et mas maples so iyaagus na raw materials nen say output rate. Say idakel na average flow efficiency et mipara ed idakel na MFR, ya sakey ed saray paraan na panagproseso, balet ta pansengegan met itan na abnormal ya panagbunog na MFR, ya nayarin pansengegan na idakel na ag-inkayadyari, ya nayarin mamarakep ed depekto. Balet, saray PP ya asumpal ya produkto et aliwan produkto ya atagey so sukat to lapud aplikasyon, kanian aliwan baleg so epekto to.
2. Tornilyo
Maslak ed panagproseso na PP et ipapaarap na tornilyo pian napaandar so fluidity, kanian say desinyo na tornilyo et walaan na baleg ya impluensya. Say kabaleg na diametro et mangaapekta ed output, tan say compression ratio et mangaapekta ed pressure value tan say output tan say epekto na asumpal a produkto. Kaiba met ed saya so nanduruman materyales. (Color masterbatches, additives tan modifiers) epekto na panaglaok. Say iyaagus na raw material et mandedepende ed heater, balet say frictional heat na raw material et mamawala met na frictional heat pian napapeles so fluidity, kanian melag so screw compression ratio tan melag so agos, tan kaukolan ya paeleten so rotation speed. Say frictional heat et mas baleg nen say screw ya baleg so compression ratio to. Kanian, mabetbet ya ibabaga ya anggapoy master ed panagproseso na plastik, tan say toon maalwar ya makatalos ed performance na makina et sikato so master. Say panagpainit ed saray hilaw ya materyales et aliwan sakey labat a pampainit, no ag pati say petang na frictional tan say panaon na pan-suffocate. Kanian saya so praktikal a problema, tan say eksperiensya so ontulong pian nasolbar iray problema ed produksyon tan inkaepektibo. No say tornilyo et kaukolan ya nawalaan na maong ya epekto na panaglaok, no maminsan et walay duaran yugtan ya nanduruman tornilyo odino twin-shaft ya tornilyo ya idesinyo tan nanduruman klase na tornilyo so naapag ed saray seksion pian nawalaan na nanduruman epekto na panaglaok.
3. Mold o die head
Say plastik ya pananguman et mandedependi ed molde odino die head. Say injection molded product et taloran dimension, tan say mold et mas komplikado. Kaukolan ya ikonsidera so shrinkage rate. Saray arum et patatdang, strip, tan singa dagum ya tuloytuloy ya ulo na produkto. No espisyal so kurti ra, niklasipika itan ya heterogeneous tan kaukolan ya imanoen a tampol so problema na panagpalemew tan panagporma. Maslak ed saray plastik ya makina et adesinyo a singa saray injection syringe, tan say puersa na extrusion ya ipapaarap na tornilyo et pansengegan na baleg a pressure ed saray melag ya outlet, ya mamaaligwas ed produksyon. No say die head et adesinyo bilang eroplano, no panon ya ibunog so raw materials ya parepareho ed interon tapew, say desinyo na hanger die head et importante, tan say marakep ya pankanawnawan man-press et mamarakep ed stable ya suplay na raw materials na fish gill pump.
4. Panagpaliis
Nilikud ed sprue gate ya mangibubuga na raw materials, say injection mold et walaan met na cooling water channel cooling raw material design. Say extrusion molding et mandedependi ed cooling water channel ed roller pian nadampot so cooling effect, likud ed air knife, say cooling water et direktan ibuntok ed blowing bag, tan say cooling method a singa say hollow blowing.
5. Extension
Say pangiproseso lamet tan pangilaknab ed asumpal a produkto et mamaaligwas ed epekto. Singa bilang, say strapping belt et ipapaandar na saray roller ed arap tan beneg ed nanduruman kapeles pian nawalaan na extension effect. Say tensile strength na oriented extension part na asumpal a produkto et napabiskeg tan aliwan mainomay ya nabuyak, balet mainomay ya nabuyak ed horizontal ya direksion. Say inkaapag-apag na belat na molekula et mangaapekta met ed epekto na panaglaknab legan na maples a produksyon. Amin ya extruded ya produkto kaiba lay fibers et walaan na nanduruman extension. Say vacuum tan pressure forming et nayarin ipasen met ya sananey a klase na extension.
6. Manpaabeba
Antokaman ya raw material et walay problema ton onkupas. Say pan-shrinkage et lapud thermal expansion tan cold shrinkage tan say internal stress ya nagagawa legan na panporma na kristal. Diad inkalapagan, say thermal expansion tan contraction et mas mainomay ya talonaan. Nagawaan iya diad pamalaknab na panaon na panagpalemew ed panagproseso, tan pantultuloy ya pansiansiaen so presyon. Say crystalline raw material et mabetbet ya mas baleg so pandumaan na shrinkage to nen say amorphous material, ya manga sanlibo parad PP. Labin-anem, balet say ABS et manga apat a sanlibo labat. Sayan kabiangan na pandumaan et baleg a tuloy. Sayan parte et kaukolan ya nalampasan ed molde, odino saray additives ya mamawas ed shrinkage et mabetbet ya iyaarum pian natalonaan so problema na LDPE et mabetbet ya iyaarum ed extruded plate pian napaaligwas so problema ed necking.
GTMSMART Machinery thermoforming machines:
Oras na pangi-post: Nobyembre-18-2020