Ihe Screw Barrel Na-eme n'ezie
Ihe nkedo na gbọmgbọm na-arụ ọrụ dị ka ụzọ jikọtara ọnụ. Nke a bụ usoro usoro okirikiri ọ bụla:
- Nri- Plastic pellets dobe si hopper n'ime ndepụta mpaghara.
- Na-agbaze- Ihe nkedo na-agbanwe agbanwe na-ebute ikpo ọkụ. Ejikọtara ya na ndị na-ekpo ọkụ gbọmgbọm, pellets na-agbaze na mpikota onu.
- Mita- The gbazee na-aghọ edo na okpomọkụ na nrụgide tupu injection.
- Ịgba ọgwụ- The ịghasa na-aga n'ihu dị ka a plunger, ịkwanye plastic wụrụ awụ n'ime ebu.
Ụdị mgbanwe ọ bụla - geometry, oke mpaghara, ọgwụgwọ elu - na-emetụta ka usoro anọ ahụ si eme nke ọma. Nkwekọrịta na nke ọ bụla n'ime ha na-egosi dị ka nsogbu mmepụta.
Mkpebi 1: Oke L/D
Ọnụọgụ L/D (ogologo gbagoro agbago kewara site na dayameta ya) bụ ọnụọgụ kachasị mkpa na mpempe akwụkwọ ahụ. Ọ na-achịkwa oge obibi, àgwà agwakọta, na nkesa okpomọkụ.Ọtụtụ ngwa ịkpụzi injection injection na-eji 20:1.
| Resin | L/D akwadoro |
|---|---|
| PP, PE, PS (ọkọlọtọ) | 18:1–20:1 |
| ABS, PC | 20:1–24:1 |
| PVC (ọkụ na-enwe mmetụta) | 16:1–20:1 |
| PET | 20:1–22:1 |
| Naịlọn (PA) | 18:1–20:1 |
| Ihe agbanyere GF | 20:1–24:1 |
Mkpebi 2: Oke mkpakọ
Oke mkpakọ (CR) na-atụ ole ọwa skru dị warara site na mpaghara ndepụta ruo na mpaghara metering. CR dị elu na-eme ka mgbaze ahụ dịkwuo ike - ọ dị mma maka resin amorphous nke na-eji nwayọọ nwayọọ nwayọọ. Lower CR dị nwayọọ karị, nke bụ ihe ịchọrọ maka ihe ndị na-ekpo ọkụ ma ọ bụ fiber jupụtara.
| Resin | Oke mkpakọ |
|---|---|
| ABS, PC, PMMA (amorphous) | 3.0 – 3.5:1 |
| PP, PE, naịlọn (ọkara kristal) | 2.5 – 3.0:1 |
| PVC | 2.0 - 2.5:1 |
| PET | 2.3–2.6:1 |
| GF kwadoro (≥15%) | 2.0 - 2.5:1 |
Mkpebi 3: Oke mpaghara
Ihe nkedo injection ọkọlọtọ na-ekewa n'ime mpaghara atọ. Oke mpaghara ọ bụla dị mkpa dịka mkpokọta L/D.
- Mpaghara nri (L1):Ọwa miri emi na-anabata pellets siri ike site na hopper. Ogologo ogologo = ikike ntinye karịa.
- Mpaghara mkpakọ (L2):Omimi ọwa na-ebelata nke nta nke nta. Ọtụtụ n'ime agbaze na-eme ebe a.
- Mpaghara igwe (L3):Ọwa na-emighị emi, na-agbanwe agbanwe. Na-eme ka ọ dị otu agbaze okpomọkụ na nrụgide tupu ịgba ọgwụ.
| Resin | Nri (L1) | Mkpakọ (L2) | Ntugharị (L3) |
|---|---|---|---|
| PP / PE | 50% | 25% | 25% |
| ABS / PC | 40% | 40% | 20% |
| PET | 40% | 40% | 20% |
| Naịlọn (PA) | 35-45% | 35-40% | 20-25% |
| PVC | 35% | 50% | 15% |
Mkpebi 4: Screw Barrel Material
38CrMoALA - The Standard Baseline
A na-esi na arụpụta skru injection nke Nanhaiya38CrMoALA alloy ígwè, a na-agwọ ọkụ ma menyụọ. Ihe ndabere a na-ejikwa thermoplastics ọkọlọtọ dị ka PE, PP, PS, na ABS nke ọma, yana ndụ ọrụ ihe dịka.10,000-20,000 awan'okpuru ọnọdụ ọrụ nkịtị.
Nitriding
Nitriding gas na 500-560°C na-etolite oyi akwa nitrided0.5-0.8mm ọkpụrụkpụna isi ike nke950–1050 HV (~ 62 HRC). Nke a na-eme ka nguzogide iyi na-akawanye mma site na 30-40% ma e jiri ya tụnyere ígwè anaghị agwọ ya. Ọkọlọtọ maka ọtụtụ ngwa ịkpụzi injection na-arụ ihe ndị na-ejughị afọ ma ọ bụ nke dị obere.
Nanhaiya mutant (na mberede) nkedo ịkpụzi nkedo - dabara maka resins crystalline dị ka PP, PE na naịlọn.
Bimetallic - Maka Ngwa Abrasive
Barrels Bimetallic nwere akwa akwa na-eguzogide ọgwụ ọla na-ejikọta ya na gbọmgbọm ahụ. Usoro bimetallic nke Nanhaiya na-enweta otuike ime ime nke 62 HRCsite ike alloy ịgba ịgbado ọkụ gburugburu elu-eyi ebe nke gbọmgbọm ime.
| Ngwa | Ihe ịghasa | Ọgwụgwọ Barrel |
|---|---|---|
| PE, PP, PS (ejughi) | 38CrMoALA nitrided | Standard nitrided |
| ABS, PC, naịlọn (ejughi) | 38CrMoALA nitrided | Standard nitrided |
| PA + GF ≤30% | 38CrMoALA, emenyụ + iwe | Nitrided ma ọ bụ bimetallic |
| GF ọdịnaya 15-50% | Ọnụ ụgbọ elu Bimetallic / TC | Bimetallic |
| PVC / corrosive resins | Alloy na-eguzogide corrosion | Bimetallic (ọkwa CR) |
| Ejula eriri carbon | Tungsten carbide | TC gbasakwara |
Mkpebi 5: Ịkpọsa dayameta na nha agba
Ọgbara gị n'ezie kwesịrị ịdaba n'etiti35% na 70%nke ịghasa kacha gbaa ike. N'okpuru 35%, ihe na-anọdụ n'ime gbọmgbọm ogologo oge ma na-etinye ihe egwu nbibi. Karịrị 70%, skru enweghị ike ịgbake ngwa ngwa n'ime okirikiri.
N'okpuru bụ nhazi ndị nkịtị dị na Nanhaiya:
| Ọnụ ego ịgbanye (g) | Ịghasa Ø × Ogologo (mm) | Barrel Ø × Ogologo (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 |
Nanhaiya nwayọọ nwayọọ ịkpụzi skru - ka mma maka resins amorphous dị ka ABS, PC, na PMMA.
Ịdọ aka ná ntị na-egosi skru gị ugbu a ezighi ezi maka ọrụ ahụ
- Species ojii ma ọ bụ ọkụ ọkụ- Ihe na-eweda ya ala site na oke oge obibi ma ọ bụ ebe dị ọkụ. Lelee mpaghara okpomoku gbọmgbọm na mkpọsa ọkụ.
- Ibu ogbugba na-ekwekọghị ekwekọ- Ọtụtụ mgbe, valvụ na-adịghị alaghachi azụ na-eyi ma ọ bụ nkwụsị nke ịghasa na-barel gabiga ókè na-enye ohere ịlaghachi azụ.
- Akara ngosi n'elu- Mmiri ma ọ bụ gas na agbaze. Nwere ike igosi ezughị ezu tupu ihicha ma ọ bụ skru geometry nke na-anaghị apụta nke ọma.
- Iweghachite nwayọ / ogologo oge okirikiri- Plasticizing ike ezughi oke. O yikarịrị ka dayameta skru kwesịrị ịbawanye.
- Ihe mkpofu dị elu na mgbanwe agba- Ịgwakọta adịghị mma na mpaghara metering. Ihe ngwakọta Maddock ma ọ bụ ihe mgbochi agbakwunyere na ịghasa na-edozi nke a.
Ihe ị ga-agwa onye nrụpụta gị mgbe ị na-arịọ nkwupụta
- Ụdị igwe na ihe nlereanya- ma ọ bụ gbara dayameta na flange akụkụ maka igwe na-abụghị ọkọlọtọ
- Resin (s) nke mbụ- tinye ụdị ndochi na pasentị ma ọ bụrụ na ọdabara
- Ogologo nha agba- kacha nta na kacha na gram
- Oge okirikiri ebumnuche
- Nsogbu dị ugbu a ị na-achọ idozi- ọ bụrụ na ọ bụla
Nweta ntụnye nka nka n'aka Nanhaiya
Anyị na-aza n'ime awa 12. Ndị otu injinia anyị nwere ike ịkọwapụta geometry skru ziri ezi, ọkwa ihe, yana nha maka igwe gị na resin - tupu itinye aka na ntinye okwu.
