I-screw barrel iwumgogodla womshini wakho wokubumba umjovo. Incibilikisa ipulasitiki yakho, iyixube, futhi iyiphushele esikhunjeni - umjikelezo emva komjikelezo, iminyaka. Uma ingalungile ngohlelo lwakho lokusebenza, uyibona yonke indawo: isisindo sokudubula esingahambisani, ukonakala kwendawo, amachashaza amnyama, namazinga akhuphukayo. Lo mhlahlandlela uhlanganisa zonke izinqumo ukuze ukwazi ukukulungisa okokuqala.

Lokho Okwenziwa I-Screw Barrel Empeleni

Isikulufu nomgqomo kusebenza njengepheya efanisiwe. Nakhu ukulandelana kwawo wonke umjikelezo:

  1. Ukondla— Amapulangwe epulastiki awela phansi esuka ku-hopper aye endaweni yokudla.
  2. Iyancibilika- Isikulufu esijikelezayo sikhiqiza ukushisa kwe-shear. Kuhlanganiswe nezifudumezi zomgqomo, ama-pellets ayancibilika futhi acindezele.
  3. Ukulinganisa— Ukuncibilika kufana nezinga lokushisa kanye nengcindezi ngaphambi kokujova.
  4. Umjovo- Isikulufu siya phambili njenge-plunger, siphusha ipulasitiki encibilikisiwe esikhunjeni.

Konke okuguquguqukayo kokuklama - i-geometry, izilinganiso zendawo, ukwelashwa kwendawo - kuthinta ukuthi lezo zinyathelo ezine zenzeka kanjani. Ukungafani kunoma iyiphi yazo kuvela njengenkinga yokukhiqiza.

Isinqumo 1: Isilinganiso se-L/D

Isilinganiso se-L/D (ubude be-screw flighted ihlukaniswe ngobubanzi baso) inombolo ebaluleke kakhulu eshidini lokucacisa. Ilawula isikhathi sokuhlala, ukuxutshwa kwekhwalithi, nokusabalalisa ukushisa.Iningi lezinhlelo zokusebenza zokubumba umjovo wenhloso ejwayelekile zisebenzisa u-20:1.

Umthetho:Ama-resin azinzile ekushiseni ahamba isikhathi eside (phezulu L/D). Ama-resin angezwani nokushisa aba mfishane.
I-Resin I-L/D enconyiwe
PP, PE, PS (okujwayelekile) 18:1 – 20:1
ABS, PC 20:1 – 24:1
I-PVC (izwela ukushisa) 16:1 – 20:1
I-PET 20:1 – 22:1
Inayiloni (PA) 18:1 – 20:1
Izinto eziqiniswe yi-GF 20:1 – 24:1

Isinqumo sesi-2: Isilinganiso sokucindezela

Isilinganiso sokuminyanisa (CR) sikala ukuthi ishaneli yesikulufa incipha kangakanani ukusuka endaweni yokuphakelayo ukuya endaweni yemitha. I-CR ephakeme icindezela ukuncibilika ngamandla kakhulu - kuhle kuma-amorphous resins athambe kancane kancane. I-CR ephansi ithambile, okuyikhona okudingayo ezintweni ezizwela ukushisa noma ezigcwele ifayibha.

 Ngezinto ezigcwele i-GF, i-CR ephezulu kakhulu iphula imicu yengilazi. Lokho kwenza ingxenye yokugcina ibe buthakafuthikusheshisa ukuguga kwesikulufa ngesikhathi esifanayo.
I-Resin Isilinganiso sokucindezela
I-ABS, i-PC, i-PMMA (i-amorphous) 3.0 - 3.5:1
I-PP, i-PE, inayiloni (semi-crystalline) 2.5 – 3.0:1
I-PVC 2.0 – 2.5:1
I-PET 2.3 – 2.6:1
I-GF-reinforced (≥15%) 2.0 – 2.5:1

Isinqumo sesi-3: Izilinganiso Zendawo

Isikulufu somjovo esijwayelekile sihlukana sibe amazoni amathathu. Ingxenye yendawo ngayinye ibaluleke kakhulu njengengqikithi ye-L/D.

  • Indawo Yokuphakelayo (L1):Iziteshi ezijulile ezamukela ama-pellets aqinile ku-hopper. Inde = umthamo wokukhipha ngaphezulu.
  • Indawo Yokucindezela (L2):Ukujula kwesiteshi kuncipha kancane kancane. Ukuncibilika okuningi kwenzeka lapha.
  • I-I-Metering Zone (L3):Iziteshi ezingajulile, ezingaguquki. Iqinisekisa izinga lokushisa elifanayo lokuncibilika kanye nengcindezi ngaphambi kokujova.
I-Resin Okuphakelayo (L1) Ukucindezela (L2) Imitha (L3)
PP / PE 50% 25% 25%
I-ABS / PC 40% 40% 20%
I-PET 40% 40% 20%
Inayiloni (PA) 35–45% 35–40% 20–25%
I-PVC 35% 50% 15%

Isinqumo sesi-4: Izinto Zemigqomo Yesikulufu

38CrMoALA — The Standard Baseline

Izikulufu zokubumba umjovo zikaNanhaiya zenziwa kusukela38CrMoALA ingxubevange yensimbi, aphathwe ukushisa acime. Lesi sisekelo siphatha ama-thermoplastics ajwayelekile afana ne-PE, PP, PS, kanye ne-ABS kahle, nempilo yesevisi cishe10,000–20,000 amahorangaphansi kwezimo ezijwayelekile zokusebenza.

I-Nitriding

I-nitriding yegesi ku-500–560°C yakha ungqimba lwe-nitridedUbukhulu be-0.5-0.8mmngobulukhuni be950–1050 HV (~62 HRC). Lokhu kuthuthukisa ukumelana nokugqoka ngo-30-40% uma kuqhathaniswa nensimbi engalungiswanga. Okujwayelekile kwezinhlelo zokusebenza eziningi zokubumba umjovo ezisebenzisa izinto ezingagcwaliswanga noma ezigcwaliswe kancane.

Mutant Injection Molding Screw – Nanhaiya

I-Nanhaiya mutant (ngokungazelelwe) isikulufu sokubumba umjovo - sifanelekela ama-crystalline resins njenge-PP, PE, neNyiloni.

I-Bimetallic - Yezinhlelo Zokusebenza Ezibuhlungu

Imiphongolo ye-Bimetallic ine-alloy high-alloy-resistant lining eboshwe nge-metallurgically kumbhobo. Inqubo ye-bimetallic ka-Nanhaiya ifinyelela i-ubulukhuni bangaphakathi obungama-62 HRCngokusebenzisa i-hard alloy spray welding ezungeze izindawo ezigqoke kakhulu zengaphakathi lomgqomo.

Ngaphansi kwezimo ezilimazayo, umgqomo we-bimetallic ngokuvamile uhlala3–5× ubudekunomphongolo we-nitrided ojwayelekile. Izindleko zangaphambili eziphezulu ziyiqiniso, kodwa izindleko zobunikazi ziphansi.
Isicelo Isikulufu Material Ukwelashwa Kwemigqomo
I-PE, PP, PS (engagcwalisiwe) 38CrMoALA nitrided I-nitrided ejwayelekile
I-ABS, i-PC, inayiloni (ayigcwalisiwe) 38CrMoALA nitrided I-nitrided ejwayelekile
I-PA + GF ≤30% 38CrMoALA, incitshiwe + ithukuthele I-nitrided noma i-bimetallic
Okuqukethwe kwe-GF 15–50% I-Bimetallic / TC imiphetho yendiza I-Bimetallic
I-PVC / ama-resin abolayo Ingxubevange emelana nokugqwala I-Bimetallic (ibanga le-CR)
I-carbon fibre egcwele I-tungsten carbide Ibhore efafazwe nge-TC

Isinqumo sesi-5: I-Screw Diameter kanye Nosayizi Wokudubula

Isibhamu sakho sangempela kufanele siwele phakathi35% kanye 70%umthamo omkhulu wesikulufa wokushutha. Ngaphansi kuka-35%, impahla ihlala emgqonyeni isikhathi eside futhi ibeka engcupheni ukuwohloka. Ngaphezulu kuka-70%, isikulufu asikwazi ukululama ngokushesha ngokwanele phakathi nomjikelezo.

Ngezansi kukhona ukucushwa okujwayelekile okutholakala kwaNanhaiya:

Inani lomjovo (g) Isikulufu Ø × Ubude (mm) Umphongolo Ø × Ubude (mm)
30–90 Φ30×900 Φ85×860
60–125 Φ35×910 Φ85×860
100–150 Φ38×935 Φ95×900
125–300 Φ42×1030 Φ105×1110
250–400 Φ45×1210 Φ115×1165
300-500 Φ50×1300 Φ125×1260
500-700 Φ60×1380 Φ140×1350
700-1000 Φ70×1790 Φ160×1685
1000–1500 Φ160×3500 Φ270×3200
1300–2500 Φ170×3415 Φ317×3380
Gradual Injection Molding Screw – Nanhaiya

Isikulufu sokubumba umjovo we-Nanhaiya kancane kancane — singcono kuma-amorphous resins njenge-ABS, i-PC, ne-PMMA.

Izimpawu Eziyisixwayiso Isikulufu Sakho Samanje Asilungile Kumsebenzi

  • Amachashaza amnyama noma amabala ashile- Ukwehliswa kwesithunzi ngenxa yesikhathi sokuhlala ngokweqile noma indawo eshisayo. Hlola izindawo zokushisa zomgqomo kanye nokucaciswa kwesikulufu.
  • Isisindo sokudubula esingaguquki- Imvamisa i-valve engabuyi egugile noma imvume yokungena emgqonyeni eyeqile evumela ukugeleza emuva.
  • Dlala amamaki ebusweni— Umswakama noma igesi ekuncibilikeni. Ingase ibonise ukomisa kwangaphambili okunganele noma i-screw geometry engaphumi kahle.
  • Ukululama kancane / isikhathi eside somjikelezo- Umthamo we-Plasticizing awanele. I-screw diameter cishe idinga ukwanda.
  • Ukushintshashintsha kombala okuphezulu— Ukungahlangani kuhle endaweni yemitha. I-Maddock noma i-barrier mixing element engezwe kusikulufa ngokuvamile ixazulula lokhu.

Ongakutshela Umkhiqizi Wakho Uma Ucela Ikhotheshini

  1. Uhlobo lomshini kanye nemodeli- noma i-bore diameter kanye ne-flange dimensions yemishini engajwayelekile
  2. I-resin eyisisekelo- faka uhlobo lokugcwalisa kanye nephesenti uma kusebenza
  3. Ibanga losayizi wokudutshulwa- ubuncane kanye nenani eliphezulu ngamagremu
  4. Isikhathi somjikelezo oqondisiwe
  5. Izinkinga zamanje ozama ukuzixazulula- uma ikhona

Thola Isincomo Sobuchwepheshe esivela e-Nanhaiya

Siphendula phakathi namahora angu-12. Ithimba lethu lonjiniyela lingacacisa ijiyomethri yesikulufu esifanele, ibanga lezinto ezibonakalayo, nobukhulu bomshini wakho nenhlaka — ngaphambi kokuthi uzibophezele ekucaphuneni.

Thumela Uphenyo Buka Izikulufu Zokubumba Umjovo →

imibuzo ejwayelekile ukubuzwa

Ingakanani isilinganiso se-L/D esetshenziswa imishini eminingi yokubumba umjovo?
Isilinganiso esingu-20:1 isikulufu se-L/D ukukhetha okujwayelekile kwemishini yokubumba umjovo wenhloso ejwayelekile. Uma ucubungula amapulasitiki obunjiniyela afaka i-PC ne-ABS, ukukhetha isilinganiso esingu-22:1–24:1 kuzothuthukisa kakhulu umphumela wokuhlanganisa izinto futhi kuncibilike i-homogeneity.
Ngiwudinga nini umgqomo we-bimetallic esikhundleni se-nitriding evamile?
Uma usebenzisa izinto ezisetshenziswayo ezine-fibre yengilazi engaphezu kuka-15%, isigcwalisi samaminerali, noma ama-resin abolayo njenge-PVC, i-bimetallic izodlula umgqomo we-nitrided ngo-3–5× ngaphansi kwalezo zimo. Ku-thermoplastics ejwayelekile engagcwalisiwe, i-nitriding yanele.
Isho ukuthini i-38CrMoALA?
Kuyindinganiso yensimbi eyingxubevange esetshenziswa kakhulu emiphongolweni yesikulufu. Ukwakheka (i-chromium, i-molybdenum, i-aluminium) kunikeza amandla amahle ayisisekelo kanye nokusabela okuqinile ku-nitriding. Ngemuva kwe-nitriding yegesi, ubulukhuni bobuso bufinyelela ku-950–1050 HV, cishe ku-62–65 HRC.
Ngingakwazi ukusebenzisa i-screw barrel eyodwa kuma-resin amaningi?
Isikulufu esinenhloso evamile ye-nitrided sisebenza kahle kuwo wonke ama-thermoplastics ajwayelekile - PP, PE, ABS, PS. Kodwa uma ushintsha njalo phakathi kwama-resin abolayo nangagqwali, noma phakathi kwezinto ezingagcwaliswanga nezigcwele kakhulu, izikulufu ezinikezelwe emndenini ngamunye we-resin zizobiza kakhulu isikhathi eside.
I-screw barrel kufanele ihlale isikhathi esingakanani?
Isikulufu esine-nitrided esisebenzisa i-PP engagcwalisiwe ekukhiqizeni okuqhubekayo ngokuvamile sithatha amahora angu-10,000–20,000. Ukusebenzisa inayiloni engu-30% ye-GF ngesikulufu esifanayo kusike leyo mpilo kakhulu. Ukucaciswa okulungile kubaluleke ngaphezu kwegama lomkhiqizo.