Nigute wazamura imikorere nubuziranenge bwa PVC Kugabanya Amafilime

Gukora neza hamwe nubwiza bwa PVC bigabanya firime byerekana neza umusaruro wumushinga, ibiciro, hamwe nubushobozi bwisoko. Ubushobozi buke butera ubushobozi guta no gutinda kubitanga, mugihe inenge nziza (nko kugabanuka kutaringaniye no gukorera mu mucyo) bivamo ibibazo byabakiriya no kugaruka. Kugirango tugere ku iterambere ryombi rya "imikorere myiza + ireme," imbaraga zuzuye zirasabwa mubice bine byingenzi: kugenzura ibikoresho fatizo, kunoza ibikoresho, gutunganya neza, kugenzura ubuziranenge. Hano hepfo haribisubizo byihariye, bifatika:

Kugenzura Inkomoko: Hitamo Ibikoresho Byukuri kugirango ugabanye nyuma yumusaruro "Ingaruka zakazi"

Ibikoresho bibisi nibyo shingiro ryubuziranenge nibisabwa kugirango bikore neza. Ibikoresho fatizo bidahuye cyangwa bidahuye bitera umusaruro uhagarara kenshi kugirango uhindurwe (urugero, gukuraho ibibujijwe, gutunganya imyanda), kugabanya imikorere neza. Wibande ku bwoko butatu bwibanze bwibikoresho fatizo:

1.PVC Resin: Shyira imbere "Ubuziranenge Bwinshi + Ubwoko-bwihariye"

• Guhuza Icyitegererezo:Hitamo resin hamwe na K-agaciro gakwiye ukurikije ubunini bwa firime igabanuka. Kuri firime yoroheje (0.01-0.03 mm, urugero, gupakira ibiryo), hitamo resin ifite K-agaciro ka 55-60 (fluidite nziza yo gukuramo byoroshye). Kuri firime zibyibushye (0,05 mm +, urugero, gupakira pallet), hitamo resin ifite K-agaciro ka 60-65 (imbaraga nyinshi no kurwanya amarira). Ibi birinda umubyimba wa firime utaringaniye uterwa no kutagira amazi meza.

• Kugenzura Isuku:Saba abatanga isoko gutanga raporo yubuziranenge bwa resin, kwemeza ko vinyl chloride monomer isigaye (VCM) ari <1 ppm kandi umwanda (urugero, umukungugu, polimeri nkeya) ni <0.1%. Umwanda urashobora guhagarika ibicuruzwa biva mu rupfu kandi bigatera pinholes, bisaba igihe cyinyongera cyo gukora isuku no kugira ingaruka nziza.

2.Inyongera: Wibande kuri "Gukora neza, Guhuza, no Kwubahiriza"

• Abashinzwe umutekano:Simbuza isabune yumunyu itajyanye n'igihe (uburozi kandi bukunda guhinduka umuhondo) hamwecalcium-zinc (Ca-Zn)guhuza ibintu. Ibi ntabwo byubahiriza gusa amabwiriza nka EU REACH na gahunda y’imyaka 14 y’Ubushinwa mu myaka itanu ahubwo binongera ingufu z’ubushyuhe. Ubushyuhe bwo gukuramo ubushyuhe bwa 170–200 ° C, bigabanya iyangirika rya PVC (birinda umuhondo n'ubukonje) kandi bigabanya imyanda hejuru ya 30%. Kuri moderi ya Ca-Zn ifite "amavuta yubatswe," nayo igabanya umuvuduko wo gupfa kandi ikongera umuvuduko wo gukuramo 10-15%.

• Amashanyarazi:Shyira imbere DOTP (dioctyl terephthalate) hejuru ya DOP gakondo (dioctyl phthalate). DOTP ifite uburyo bwiza bwo guhuza na PVC resin, kugabanya “exudates” hejuru ya firime (kwirinda gufunga no kuzamura gukorera mu mucyo) mugihe uzamura kugabanuka (kugabanuka kw'igipimo cyo kugabanuka bishobora kugenzurwa muri ± 3%).

• ibikoresho byo kwisiga) Inyongera zikorwa:Kuri firime zisaba gukorera mu mucyo (urugero, gupakira kwisiga), ongeramo 0.5-1 interuro isobanura (urugero, sodium benzoate). Kuri firime-ikoreshwa hanze (urugero, gupakira kwisiga), gupakira ibikoresho byubusitani), ongeramo 0.3–0.5 interuro ya UV ikurura kugirango wirinde umuhondo imburagihe kandi ugabanye ibicuruzwa byarangiye.

3.Ibikoresho bifasha: Irinde “Igihombo Cyihishe”

• Koresha ibinini byera cyane (urugero, xylene) bifite ubuhehere <0.1%. Ubushuhe butera umwuka mwinshi mugihe cyo gukuramo, bisaba igihe cyo gutesha agaciro (guta iminota 10-15 kuri buri kintu).

• Mugihe cyo gutunganya ibishushanyo mbonera, menya neza ko ibintu byanduye mubikoresho bitunganijwe ari <0.5% (kuyungurura ukoresheje ecran ya mesh 100) kandi igipimo cyibikoresho bitunganijwe ntikirenga 20%. Ibikoresho byinshi byongeye gukoreshwa bigabanya imbaraga za firime no gukorera mu mucyo.

Gukwirakwiza ibikoresho: Kugabanya “Igihe cyo hasi” no Kunoza “Gukora neza”

Intandaro yo gukora neza ni "ibikoresho bikora neza". Kwirinda no gukumira ibyangiritse birakenewe kugirango ugabanye igihe, mugihe kunoza ibikoresho neza bitanga ireme.

1.Extruder: Kugenzura Ubushyuhe Bwuzuye + Gupfa gupfa buri gihe kugirango wirinde "Guhagarika no Guhondo"

• Igice cyo kugenzura ubushyuhe:Ukurikije ibishonga biranga PVC resin, gabanya ingunguru ya extruder mubice 3-4 by'ubushyuhe: agace kagaburira (140-160 ° C, gushiramo ubushyuhe), agace ko guhunika (170-180 ° C, gushonga), akarere gashiramo (180–200 ° C, guhagarika gushonga), no gukumira ubushyuhe bwaho (175–195 ° C, bikarinda ubushyuhe bwaho). Koresha uburyo bwubwenge bwo kugenzura ubushyuhe (urugero, PLC + thermocouple) kugirango ihindagurika ryubushyuhe muri ± 2 ° C. Ubushyuhe bukabije butera PVC umuhondo, mugihe ubushyuhe budahagije butera gushonga kutuzuye gushonga hamwe nudusembwa twa "fi-eye" (bisaba igihe cyo guhinduka).

• Gusukura buri gihe:Sukura ibikoresho bisigaye bya karubone (ibicuruzwa bitesha agaciro PVC) kuva kumutwe wapfuye buri masaha 8-12 (cyangwa mugihe cyo guhindura ibintu) ukoresheje umuringa wabigenewe (kugirango wirinde gukuramo iminwa ipfa). Kubice bipfuye, koresha ultrasonic isukura (iminota 30 kuri cycle). Ibikoresho bya karubone bitera ibibara byirabura kuri firime, bisaba gutondekanya intoki imyanda no kugabanya imikorere.

2.Sisitemu yo gukonjesha: Gukonjesha kimwe kugirango urebe neza "Flatness Flatness + Shrink Uniformity"

• Gukonjesha Roll Calibration:Hindura kuringaniza ibice bitatu byo gukonjesha buri kwezi ukoresheje urwego rwa laser (kwihanganira <0.1 mm). Icyarimwe, koresha ubushuhe bwa termometero kugirango ukurikirane ubushyuhe bwubuso (bugenzurwa kuri 20-25 ° C, itandukaniro ryubushyuhe <1 ° C). Ubushyuhe butaringaniye butera igipimo cyo gukonjesha kwa firime kidahuye, biganisha ku kugabanuka gutandukanya (urugero, kugabanuka 50% kuruhande rumwe na 60% kurundi ruhande) kandi bisaba kongera gukora ibicuruzwa byarangiye.

• Gukwirakwiza impeta zo mu kirere:Kuburyo bwa firime yerekana (ikoreshwa kuri firime zoroheje zigabanuka), hindura ikirere kimwe cyimpeta yikirere. Koresha anemometero kugirango umenye itandukaniro ryumuyaga mumuyaga uzenguruka icyerekezo cyumuyaga ni <0.5 m / s. Umuvuduko utaringaniye wumuyaga uhungabanya firime, bitera "gutandukana kwubugari" no kongera imyanda.

3.Guhinduranya no Kuzenguruka Trim Recycling: Automation igabanya "Intervention Intoki"

• Automatic Winder:Hindura kuri winder hamwe na "gufunga-gufunga impagarara". Hindura impagarara zihindagurika mugihe nyacyo (shiraho ukurikije ubunini bwa firime: 5-8 N kuri firime zoroshye, 10-15 N kuri firime zibyibushye) kugirango wirinde "guhindagura umuyaga" (bisaba guhindurwa nintoki) cyangwa "guhindagurika cyane" (bitera kurambura firime no guhindura ibintu). Imikorere ihindagurika yiyongereyeho 20%.

• Kurubuga-Byihuse Gusubiramo Ibicuruzwa:Shyiramo "edge trim crushing-feed system sisitemu" kuruhande rwa mashini yatemba. Ako kanya ujanjagure impande (5-10 mm z'ubugari) zakozwe mugihe cyo gutemagura hanyuma uzisubize kuri hopper extruder ukoresheje umuyoboro (uvanze nibikoresho bishya ku kigereranyo cya 1: 4). Igipimo cyo gutunganya ibicuruzwa cyiyongera kiva kuri 60% kigera kuri 90%, bigabanya imyanda mbisi kandi bikuraho igihe cyo guterwa nintoki.

Kunonosora inzira: Gutunganya "Igenzura rya Parameter" kugirango wirinde "Inenge zuzuye"

Itandukaniro rito mubipimo byibikorwa birashobora kuganisha ku ireme ryiza, ndetse nibikoresho bimwe nibikoresho fatizo. Tegura "ibipimo byerekana ibipimo" kubikorwa bitatu byingenzi - gukuramo, gukonjesha, no gutemba - hanyuma ukurikirane ibyahinduwe mugihe nyacyo.

1.Inzira yo Kuzimya: Igenzura “Umuvuduko ushonga + Umuvuduko ukabije”

• Umuvuduko ushonga: Koresha sensor yumuvuduko kugirango ukurikirane umuvuduko ushonga winjira (igenzurwa kuri 15-25 MPa). Umuvuduko ukabije (30 MPa) utera gupfa kandi bisaba igihe cyo kubungabunga; umuvuduko udahagije (10 MPa) bivamo umuvuduko muke wo gushonga hamwe nubunini bwa firime.

• Umuvuduko wo Kwiyongera: Shiraho ukurikije uburebure bwa firime - 20-25 m / min kuri firime yoroheje (0,02 mm) na 12-15 m / min kuri firime zibyibushye (0,05 mm). Irinde "gukwega gukabije kurambura" (kugabanya imbaraga za firime) biterwa n'umuvuduko mwinshi cyangwa "imyanda yubushobozi" uhereye kumuvuduko muke.

2.Uburyo bwo gukonjesha: Hindura “Igihe cyo gukonja + Ubushyuhe bwo mu kirere”

• Igihe cyo gukonjesha: Igenzura igihe firime ituye kumuzingo ukonjesha kumasegonda 0.5-1 (bigerwaho no guhindura umuvuduko ukurura) nyuma yo gukurwa kumupfa. Igihe kidahagije cyo gutura ( amasegonda 1.5) gitera "ibibanza byamazi" hejuru ya firime (kugabanya umucyo).

• Ubushyuhe bwo mu kirere: Kubijyanye na firime, shyira hejuru yubushyuhe bwikirere 5-10 ° C hejuru yubushyuhe bwibidukikije (urugero, 30-35 ° C kuri 25 ° C ibidukikije). Irinde "gukonja gitunguranye" (bitera guhangayika cyane imbere no guturika byoroshye mugihe cyo kugabanuka) umuyaga ukonje uhuhuta cyane kuri firime.

3.Inzira yo Kunyerera: Byuzuye "Gushiraho Ubugari + Kugenzura Umujinya"

• Ubugari bwa Sliting: Koresha sisitemu yo kuyobora optique kugirango ugenzure neza neza, urebe neza kwihanganira ubugari <± 0.5 mm (urugero, 499.5-500.5 mm kubugari busabwa nabakiriya ba mm 500). Irinde kugaruka kwabakiriya guterwa no gutandukana kwagutse.

• Guhagarika umutima: Hindura ukurikije ubunini bwa firime - 3-5 N kuri firime yoroheje na 8-10 N kuri firime zibyibushye. Impagarara nyinshi zitera firime kurambura no guhindura ibintu (kugabanya igipimo cyo kugabanuka); impagarara zidahagije zitera firime zidakabije (zikunda kwangirika mugihe cyo gutwara).

Ubugenzuzi Bwiza: "Kugenzura-Igihe-Kuri-Kugenzura kuri interineti + Kugenzura Offline Sampling Verification" kugirango ukureho "Bidahuye neza"

Kuvumbura inenge nziza gusa kurwego rwibicuruzwa byarangiye biganisha ku bice byuzuye (gutakaza imikorere n'ibiciro). Gushiraho “sisitemu yuzuye yo kugenzura”:

1.Kugenzura kumurongo: Hagarika "Inenge Ako kanya" mugihe nyacyo

• Kugenzura Ubunini:Shyiramo uburebure bwa laser nyuma yo gukonjesha kugirango upime uburebure bwa firime buri masegonda 0.5. Shiraho “inzitizi yo gutandukana” (urugero, ± 0.002 mm). Niba urwego rurenze, sisitemu ihita ihindura umuvuduko wo gusohora cyangwa gupfa icyuho kugirango wirinde umusaruro uhoraho wibicuruzwa bidahuye.

• Kugenzura Kugaragara:Koresha sisitemu yo kureba imashini isikana hejuru ya firime, umenye inenge nka "ibibara byirabura, pinholes, na crease" (precision 0.1 mm). Sisitemu ihita yerekana ahantu hafite inenge no gutabaza, bituma abayikora bahagarika umusaruro vuba (urugero, gusukura ipfa, guhindura impeta yumwuka) no kugabanya imyanda.

2.Kugenzura Offline: Kugenzura “Ibikorwa by'ingenzi”

Icyitegererezo kimwe cyarangiye buri masaha 2 hanyuma ugerageze ibipimo bitatu byingenzi:

• Igipimo cyo Kugabanuka:Kata cm 10 × cm 10 z'icyitegererezo, ubishyushya mu ziko rya 150 ° C mumasegonda 30, hanyuma upime kugabanuka mubyerekezo bya mashini (MD) no guhinduranya (TD). Saba kugabanuka 50-70% muri MD na 40-60% muri TD. Hindura igipimo cya plasitike cyangwa ubushyuhe bwo gukuramo niba gutandukana birenze ± 5%.

• Gukorera mu mucyo:Gerageza hamwe na metero yumucyo, bisaba igihu <5% (kuri firime iboneye). Niba igihu kirenze igipimo, reba resin isukuye cyangwa ikwirakwiza stabilisateur.

• Imbaraga zikomeye:Gerageza ukoresheje imashini yipimisha, bisaba imbaraga zigihe kirekire ≥20 MPa hamwe nimbaraga zinyuranye ≥18 MPa. Niba imbaraga zidahagije, hindura resin K-agaciro cyangwa ongeramo antioxydants.

“Synergistic Logic” yo gukora neza no kwiza

Kunoza imikorere ya PVC bigabanya firime yibanda ku "kugabanya igihe n’imyanda," bigerwaho hifashishijwe uburyo bwo guhuza ibikoresho, guhuza ibikoresho, no kuzamura imashini. Gutezimbere ibigo byujuje ubuziranenge kuri "kugenzura ihindagurika no gukumira inenge," bishyigikiwe no kunonosora inzira no kugenzura byuzuye. Byombi ntabwo bivuguruzanya: kurugero, guhitamo imikorere-yo hejuruCa-Zn stabilisateurigabanya kwangirika kwa PVC (kuzamura ireme) no kongera umuvuduko wo gukuramo (kongera imikorere); sisitemu yo kugenzura kumurongo irinda inenge (kwemeza ubuziranenge) no kwirinda ibyiciro (kugabanya igihombo cyiza).

Ibigo bigomba kuva kuri "point-optimizme" ikajya "kuzamura gahunda," ihuza ibikoresho fatizo, ibikoresho, inzira, n'abakozi mu cyerekezo gifunze. Ibi bifasha kugera ku ntego nka "20% ubushobozi bwo kongera umusaruro, 30% munsi y’imyanda, na <1% igipimo cy’abakiriya," bigashyiraho amahirwe yo guhatanira isoko rya PVC rigabanya isoko rya firime.