EVA krataa a wɔde kyerɛw nsɛm .

EVA (Ethylene vinyl acetate copolymer) krataa yɛ plastic ade a wɔtaa de di dwuma kɛse, wɔde di dwuma kɛse wɔ mfuw ahorow mu te sɛ mpaboa nneɛma, nneɛma a wɔde di dwuma, agumadi mu nneɛma, agode, nneɛma a wɔde kyekyere nneɛma ho, fam a wɔde nneɛma gu mu, nneɛma a wɔde kyekyere nneɛma a ɛyɛ hyew a wɔde kyekyere nneɛma ho, ne nea ɛkeka ho esiane sɛ ɛyɛ mmerɛw yiye nti, sɛnea ɛyɛ mmerɛw, sɛnea ɛda adi, nnuru a wɔde yɛ adwuma, ne sɛnea wɔyɛ nneɛma yiye.

Ɔkwan titiriw a wɔfa so yɛ EVA nkrataa ne extrusion molding, na nnwinnade a ɛne no hyia ne EVA sheet extrusion production line. Saa adeyɛ kwan yi ne PP/PE krataa kwan a yɛadi kan aka ho asɛm no di nsɛ, nanso esiane EVA nneɛma no su nti (titiriw no, ɛyɛ mmerɛw, ɛyɛ mmerɛw yiye, ne sɛnea ebetumi aba sɛ ɛyɛ ahurututu), nnwinnade no nso wɔ ne su soronko.

EVA krataa afiri a edi mũ no titiriw ne afã horow a edidi so yi:

1. Nneɛma a wɔde yɛ nneɛma a wɔde yɛ nneɛma .

·Function: EVA raw materials no mu dodow no ara wɔ granular kwan so. Sɛ wɔreyɛ EVA nkrataa a ɛyɛ foam a, ɛho hia sɛ wɔde nnuru a ɛma ahurututu (te sɛ AC foaming nnuru) ne nneɛma afoforo a wɔde ka ho (aduru a wɔde twitwa nneɛma, srade, ne nea ɛkeka ho) ka ho.

·Akadeɛ:

·Afiri a wɔde ma aduan a ɛyɛ nokware: Fa EVA nneɛma nketenkete fi silo no mu kɔ extruder hopper no mu.

·Measurement feeding system: Eyi yɛ nnwinnade titiriw a wɔde yɛ foam sheets. Mpɛn pii no, wɔde mu duru a ɛso tew susuw nsenia di dwuma de frafra EVA abɔde nketenkete, foaming agent masterbatch, colorants, ne nea ɛkeka ho no pɛpɛɛpɛ na ɛkɔ so.

2. Extruder .

·Adwumayɛ: nwene, plasticize, na fa EVA raw nneɛma fra pɛpɛɛpɛ. Wɔ foam nkratafa ho no, ɛho hia nso sɛ wɔpete foaming agent no pɛpɛɛpɛ wɔ melt no mu.

·Korɔ:

·Single screw extruder: Ɛfata sɛ wɔyɛ no non foaming a ɛnyɛ foaming anaasɛ low foaming EVA sheets, a ɛwɔ structure a ɛnyɛ den na ɛho ka sua.

·Parallel ne co rotating twin-Screw extruder: a wɔtaa paw na ɛyɛ adwuma yiye. Ne afrafra tumi no ye yiye, a ebetumi apete foaming nnuru ne pigments yiye, ahwɛ ahu sɛ ɔhyew a ɛyɛ pɛ, na ama krataa no ayɛ nea ɛyɛ den kɛse. Nea ɛfata titiriw ma EVA nneɛma a wɔde hyɛ mu kɛse na ɛyɛ foaming.

3. Netwɛk a ɛsesa .

·Adwumayɛ: Filter efĩ ne unplasticized particles wɔ melt, siw nsusuwso kwan, na hwɛ hu sɛ product ahotew ne surface quality. Mpɛn pii no, ɛyɛ hydraulic automatic screen changer a ebetumi asesa filter screen no a ensiw afiri no ano, na ɛhwɛ ma wɔyɛ no daa.

4. Nkuku .

·Function: Fa plastic a wɔabɔ no a wɔabɔ no no yɛ ne tɛtrɛtɛ ne ne kɛse a wopɛ.

·Type: Titiriw de hanger type flat die head di dwuma, ne flow channel design no betumi ahwɛ ahu sɛ nneɛma a ayow no bɛkyekyɛ pɛpɛɛpɛ wɔ ne tɛtrɛtɛ no nyinaa mu, na ɛnam so anya nkratafa a ne kɛse yɛ pɛpɛɛpɛ.

·Features: Mold anofafa taa ba a ɛyɛ fɛ-tuning device a ebetumi asiesie gap no yiye wɔ gyinabea ahorow mu de ahwɛ thickness tolerance a ɛwɔ krataa no mu.

5. Mmiɛnsa roll kalenda .

·Function: Eyi ne core shaping equipment wɔ EVA sheet production mu.

·Cooling ne shaping: a ɛkorɔn-temperature molten billet a efi nkuku no mu ba no, wɔde ba ntɛm ara wɔ gap a ɛda rollers abiɛsa no ntam no mu, na nsu a ɛyɛ nwini a ɛwɔ rollers no mu no ma ɛyɛ nwini ntɛmntɛm, na ɛyɛ den na ɛyɛ nsusuwii.

·Kyerɛw no kɛse ne ne soro nsunsuanso: krataa no mu duru a etwa to ne ne soro a ɛyɛ hyew (gloss anaa matte) no gyina nsonsonoe a ɛda rollers abiɛsa no ntam ne rollers no ani a ɛyɛ torotoro no so.

·Features: Rollers abiɛsa no betumi de ne ho ayɛ nsakrae wɔ ahoɔhare ne ɔhyew mu ma adi nhyehyɛe ahwehwɛde ahorow ho dwuma.

6. Traction Unit .

·Adwumayɛ: Fa krataa a ɛyɛ nwini na ɛyɛ nsusuwii no kyerɛ afiri a wɔde twitwiw nneɛma no so yiye.

·Composition: Mpɛn pii no ɛyɛ rɔba anaa silicone rollers abien anaa nea ɛboro saa, a ɛma ɛtwetwe ade pɛpɛɛpɛ na esiw stretch deformation ano.

7. Intanɛt so nneɛma a wɔde hu nneɛma (a wopɛ nanso ɛho hia) .

·Beta ray anaa infrared thickness gauge: bere ankasa scanning ne display a ɛwɔ transverse thickness curve a ɛwɔ krataa no mu wɔ traction fã no mu, na ebetumi de nsɛm no akɔ automatic lip adjustment system a ɛwɔ mold no mu na ama wɔanya automatic thickness control (ATC), a ɛma quality consistency no tu mpɔn kɛse.

8. Winder .

·Function: Bobɔ krataa no ma ɛnyɛ roll shape. Esiane sɛ EVA nkrataa no yɛ mmerɛw nti, nhyɛso a ɛyɛ winding no so a wobedi no ho hia yiye.

·Korɔ:

·Mfinimfini winding machine: winding denam kar a ɛka no ma ɛkyinkyini so, a ɛfata ma nsɛm ahorow a wɔakyerɛw.

·Surface winding machine: Ɛma coil no akyi no kɔ so di akɔneaba wɔ friction mu, a ɛfata kɛse ma nneɛma a ɛyɛ mmerɛw na ɛnyɛ den sɛ ɛbɛsɛe na ebetumi akura coil no nsusuwii a ɛyɛ fɛ no mu yiye. Ɛyɛ ɔkwan a wɔtaa fa so yɛ winding ma EVA nkratafa.

·Ade a ɛkorɔn-End mfiri no wɔ dual station rotary rewinder, a ebetumi asesa reels a ensiw afiri no ano, a ɛma wonya automatic continuous production koraa.

9. Electrical Control System .

·Adwumayɛ: ‘amemene’ a ɛwɔ adeyɛ kwan no so. Sɛ wɔfa PLC control ne integrated touch screen a, wobetumi de process parameters nyinaa te sɛ temperature, screw speed, roller speed, traction ne winding tension a ɛwɔ ɔfã biara mu no asi hɔ pɛpɛɛpɛ na wɔadi so.

EVA particles+foam masterbatch+colorant ->weight loss metering feeding system ->twin-screw extruder (melting, mixing, foaming agent decomposition) ->screen changer (filtering impurities) ->hanger mold (forming) ->three roll calender (cooling, shaping, calendering) ->traction machine ->thickness gauge (online detection) ->winding machine (rolling) ->EVA krataa a wɔde awie ade .

Nneɛma a ɛyɛ foaming EVA nkrataa a wɔde yɛ adwuma EVA krataa so nneɛma a ɛyɛ mmerɛw .

Ɛsɛ sɛ wɔde akyɛdeɛ a ɛkorɔn-Precision weight loss susudua a wɔde ka ho no hyɛ raw material system no mu ma wɔde foaming agents ka ho. Afiri a wɔde ma aduan daa no betumi adi ahwehwɛde ahorow no ho dwuma.

Extruder no wɔ ahwehwɛdeɛ a ɛkorɔn paa ma afrafra ne apete tumi a ɛwɔ skru no mu, na twin-screw extruders na wɔpɛ. Wobetumi de screw biako anaa twin screw adi dwuma.

Adeyɛ no sohwɛ hwehwɛ sɛ wɔyɛ no pɛpɛɛpɛ kɛse. Ɔhyew sohwɛ nya foaming ratio ne nkwammoaa nhyehyɛe so nkɛntɛnso tẽẽ. Ɛnyɛ den koraa.

Nkuku no nhyehyɛe no te saa ara, nanso ɛsɛ sɛ nea wɔayɛ no susuw nsu a ɛyɛ nsu a ɛwɔ aduru a ɛma nsu no yɛ hyew no mu no ho. Standard Hanger Style Nkuku Ti.

Nnwinnade a edi hɔ, roll calender abiɛsa no, ho hia kɛse na ama wɔatumi ahwɛ foam krataa no mu duru ne ne ani so. Roll calender abiɛsa nso ho hia.

1. Product positioning: Kyerɛ mu pefee sɛ nea wɔyɛ no titiriw ne foam anaasɛ non foam nkratafa? Dɛn ne foaming ratio? Eyi na ɛkyerɛ sɛnea wɔpaw extruders ne feeding nhyehyɛe ahorow no tẽẽ.

2. Aduru no ho nsɛm: Nneɛma a wɔyɛ no trɛw a ɛsen biara (te sɛ 1000mm, 1300mm, 1500mm, ne nea ɛkeka ho) ne ne kɛse (mpɛn pii no 0.5mm-10mm).

3. Automation level: So wuhia automatic metering feeding, automatic screen a ɛsakra, automatic thickness measurement feedback (ATC), ne automatic winding? Eyinom betumi ama nneɛma a wɔyɛ no yiye ne nea ɛyɛ den no atu mpɔn kɛse, nanso ɛma ɛka nso kɔ soro.

4. Nneɛma a wɔyɛ no ho ahwehwɛde: Kyerɛ extruder model no kɛse (screw diameter).

5. Supplier selection: EVA dwumadie hwehwɛ sɛ wonya adwumayɛ mu osuahu a ɛkorɔn. Ɛsɛ sɛ wɔpaw nnwinnade a wɔde ma a ɛwɔ mfiridwuma ho nimdeɛ a ɛho akokwaw, a wotumi de akwankyerɛ a wɔde ma wɔ ɔkwan a wɔfa so yɛ adwuma, nea wɔde si hɔ ne nea wɔde ma, ne nhyehyɛe ho ntetee ma.

Nsɛm a Wɔaboaboa Ano: EVA Sheet Equipment yɛ mfiridwuma mu nimdeɛ a ɛho akokwaw extrusion production line, nanso ne nhyehyɛe betumi ayɛ soronko kɛse gyina sɛnea wɔyɛ foamed anaasɛ non foamed. Core no gyina pɛpɛɛpɛ raw material ratio transportation, efficient melt mixing, pɛpɛɛpɛ moulding cooling, ne stable winding. Ansa na wode wo sika bɛto mu no, ɛho hia sɛ wo ne nea ɔde nneɛma ma no di wo nneɛma ho ahwehwɛde ahorow ho nkitaho koraa.

Tags a ɛyɛ hyew .: EVA Sheet Machine Line, China EVA afiri a wɔde kyerɛw nsɛm, wɔn a wɔde nneɛma ma, adwumayɛbea .