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ʻO ka pahu kaʻa, anime, kiʻi, kiʻi i paʻi ʻia 3D kiʻi i hōʻike ʻia
  • Hale Kaʻa, anime, kiʻi, Kiʻi Paʻi 3D
  • Hale Kaʻa, anime, kiʻi, Kiʻi Paʻi 3D

Hale Kaʻa, anime, kiʻi, Kiʻi Paʻi 3D

ʻO ka wehewehe maʻalahi:

ʻO ke kaʻina hana injection he kaʻina hana paʻakikī e pili ana i nā kumu he nui, e like me ka hoʻolālā mold, ka hana ʻana i ka mold, nā hiʻohiʻona maka a me nā ʻano hana pretreatment maka, ke kaʻina hana, ka hana ʻana i ka mīkini injection, a pili pono i ka hoʻoponopono ʻana i nā kūlana kūlohelohe, ka manawa hoʻoluʻu huahana a kaʻina hana ma hope o ka mālama ʻana.


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Kaʻina hana

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ʻē aʻe Me ka hoʻopili ʻana

ʻO ke kaʻina hana injection he kaʻina hana paʻakikī e pili ana i nā kumu he nui, e like me ka hoʻolālā mold, ka hana ʻana i ka mold, nā hiʻohiʻona maka a me nā ʻano hana pretreatment maka, ke kaʻina hana, ka hana ʻana i ka mīkini injection, a pili pono i ka hoʻoponopono ʻana i nā kūlana kūlohelohe, ka manawa hoʻoluʻu huahana a kaʻina hana ma hope o ka mālama ʻana.

I kēia lā, e kamaʻilio e pili ana i nā waiwai a me nā ʻano hana o nā mea maka maʻamau no ka hoʻoheheʻe ʻana:

ABS

hana ABS:

Hana ʻia ʻo ABS mai ka butadiene, acrylonitrile a me styrene.Loaʻa nā ʻano like ʻole o kēlā me kēia monomer: ʻo ka butadiene ka paʻakikī a me ke kūpaʻa hopena;ʻO ke kūpaʻa wela a me ke kemika kiʻekiʻe o ka acrylonitrile;He hana maʻalahi ka Styrene, hoʻopau kiʻekiʻe a me ka ikaika kiʻekiʻe.Ma ke ʻano o ka morphology, ʻo ABS kahi mea amorphous me ka ikaika mechanical kiʻekiʻe a me nā waiwai piha maikaʻi o "paʻakikī, paʻakikī a me ke kila".He polimer amorphous.ʻO ka ABS he plastic engineering kumu nui me nā ʻano like ʻole a me nā noi ākea.Ua kapa ʻia ʻo ia ʻo "general-purpose plastic" (kapa ʻia ʻo MBS transparent ABS).He mea maʻalahi ka ABS e hoʻomoʻa i ka wai, me ka gravity kiko'ī o 1.05g/cm3 (ʻoi aku ke kaumaha ma mua o ka wai), haʻahaʻa haʻahaʻa (0.60%), ka nui paʻa a maʻalahi ke hana a hana.ʻO nā hiʻohiʻona o ABS e hilinaʻi nui ʻia i ka ratio o ʻekolu monomers a me ke ʻano molekala i nā pae ʻelua.Hiki i kēia ke loli nui i ka hoʻolālā huahana, a pēlā e hana ai i nā haneli o nā mea ABS o nā ʻano like ʻole i ka mākeke.Hāʻawi kēia mau mea waiwai like ʻole i nā hiʻohiʻona like ʻole, e like me ke kūpaʻa ʻana i ka hopena kiʻekiʻe, haʻahaʻa a kiʻekiʻe a me ka distortion wela kiʻekiʻe.Loaʻa i ka mea ABS ka hana nui, nā hiʻohiʻona hiʻohiʻona, ka haʻahaʻa haʻahaʻa, ke kūpaʻa maikaʻi loa a me ka ikaika hopena kiʻekiʻe.ʻO ABS kahi pahu melemele māmā a i ʻole bead opaque resin, non-toxic, tasteless a me ka haʻahaʻa o ka wai.Loaʻa iā ia nā waiwai kino a me nā mīkini piha maikaʻi, e like me nā waiwai uila maikaʻi loa, ke kūpaʻa ʻaʻahu, ke kūpaʻa dimensional, ke kūpaʻa kemika a me ka ʻālohilohi o ka ʻili, a maʻalahi ke hana a me ke ʻano.ʻO nā mea pōʻino ʻo ia ka pale ʻana i ka wā, ke kū ʻole i ka wela a me ka flammability.

Kaʻina hana o ABS:

a: He kiʻekiʻe ka absorption moisture ABS a me ka ʻike haʻahaʻa.Ma mua o ka hoʻoheheʻe ʻia ʻana, pono e hoʻomaloʻo ʻia a hoʻomaʻamaʻa mua ʻia (ma ka liʻiliʻi o 2 mau hola ma 80 ~ 90C) e hoʻomalu i ka ʻike ma lalo o 0.03%.

b: ʻO ka viscosity hehee o ka resin ABS ʻaʻole i maʻalahi i ka mahana (ʻokoʻa me nā resins amorphous ʻē aʻe).ʻOiai ʻoi aku ka kiʻekiʻe o ka mahana injection o ABS ma mua o ka PS, ʻaʻole hiki iā ia ke loaʻa kahi ākea hoʻomehana e like me PS.ʻAʻole hiki ke hoʻohana ʻia ke ʻano o ka hoʻomehana makapō e hōʻemi i kona viscosity.Hiki ke hoʻomaikaʻi ʻia ka wai ma o ka hoʻonui ʻana i ka wikiwiki o ka screw a i ʻole ke kaomi injection.ʻO ka maʻamau, ʻo ka mahana o ka hana ʻana he 190-235 ℃

c: ʻO ka melting viscosity o ABS he mea waena, ʻoi aku ka kiʻekiʻe ma mua o ka PS, hips a me ka mea, no laila pono e hoʻohana i ka pia me ke kiʻekiʻe o ka inikini (500 ~ 1000bar)

d: Hoʻohana ka mea ABS i ka wikiwiki a me ka wikiwiki injection, a ʻoi aku ka maikaʻi o ka hopena o ka pia.(inā ʻaʻole paʻakikī ke ʻano a me nā ʻāpana ʻāpana ʻeleʻele e pono ai ka wikiwiki o ka injection), hiki ke maʻalahi nā laina kinoea ma ka nozzle o ka huahana.

e: He kiʻekiʻe ke kiʻekiʻe o ka mahana hoʻoheheʻe ʻana o ABS, a ua hoʻoponopono ʻia kona ʻano wela ma 25-70 ℃.I ka hana ʻana i nā huahana nui, ʻoi aku ka nui o ka mahana o ka mold paʻa (mua mua) ma kahi o 5 ℃ kiʻekiʻe ma mua o ka neʻe ʻana (mold hope).(E pili ana ka wela o ka mold i ka pau ʻana o nā ʻāpana plastik, a ʻo ka haʻahaʻa haʻahaʻa e alakaʻi i ka hopena haʻahaʻa)

f: ʻAʻole pono ʻo ABS e noho i loko o ka pahu wela wela no ka lōʻihi loa (ma lalo o 30 mau minuke), inā ʻaʻole e maʻalahi ka decompose a huli melemele.

PS (polystyrene)

1. PS hana:

He polymer amorphous ʻo PS me ka maikaʻi o ka wai a me ka haʻahaʻa haʻahaʻa o ka wai (emi ma mua o 00.2%), ʻo ia ka plastic plastic maʻalahi e hana a hana.He 88-92% kāna mau huahana, ka mana kala kala a me ka paʻakikī kiʻekiʻe.Eia nō naʻe, palupalu nā huahana PS, maʻalahi i ka haki ʻana o ke koʻikoʻi o loko, maikaʻi ʻole ka wela (60-80 ℃), ʻaʻohe mea ʻawaʻawa, a ʻo ka umekaumaha kikoʻī ma kahi o 1.04g \ cm3 (ʻoi aku ka nui ma mua o ka wai).ʻO ka hoʻohaʻahaʻa ʻana (ʻo kona waiwai ma ke ʻano he 0.004-0.007in/in), transparent PS - ʻo ka inoa wale nō e hōʻike i ke ʻano o ka resin, ʻaʻole ka crystallinity.(kemika a me ke kino waiwai: 'o ka hapa nui o ka PS kalepa he mau mea akaka a amorphous. He maikai loa ke kulana geometric o ka PS, ke kupaa wela, ke ano o ka hooili uila, ke ano insulation uila a me ka li'ili'i e komo i ka makū. Hiki iā ia ke pale i ka wai a me nā waikawa inorganic diluted, akā hiki ke e ʻino ʻia e nā ʻakika oxidizing ikaika e like me ka sulfuric acid concentrated, a hiki ke hoʻonui a hoʻololi i kekahi mau mea hoʻoheheʻe organik.)

2. Kaʻina hana o PS:

ʻO ka helu hoʻoheheʻe o PS he 166 ℃, ʻo ka mahana o ka hana maʻamau he 185-215 ℃, a ʻo ka wela hoʻoheheʻe he 180 ~ 280 ℃.No nā mea pale ahi, ʻo ka palena kiʻekiʻe ʻo 250 ℃, a ʻo ka mahana decomposition ma kahi o 290 ℃, no laila ua ākea kona pae wela.ʻO ka mahana wela he 40 ~ 50 ℃, a ʻo ke kaomi injection he 200 ~ 600bar.Manaʻo ʻia e hoʻohana i ka wikiwiki injection no ka wikiwiki injection.Hiki ke hoʻohana ʻia nā ʻano ʻīpuka maʻamau a pau no ke kukini a me ka puka.ʻAʻole pono ka hoʻomaloʻo ʻana o nā mea PS ma mua o ka hana ʻana ke ʻole e mālama pono ʻia.Inā makemake ʻia ka hoʻomaloʻo ʻana, ʻo ke kūlana maloʻo i ʻōlelo ʻia he 80C no 2 ~ 3 mau hola.Ma muli o ka wela haʻahaʻa haʻahaʻa o PS, hiki iā ia ke condense a paʻa koke i ka wā e hana ai i kekahi mau mole.ʻOi aku ka wikiwiki o kona hoʻoluʻu ʻana ma mua o nā mea maka maʻamau, a hiki i ka manawa e wehe ai ka mold ma mua.He pōkole ka manawa plasticizing a me ka manawa hoʻoluʻu, a e hoʻemi ʻia ka manawa pōʻaiapili;ʻOi aku ka maikaʻi o ka nani o nā huahana PS me ka piʻi ʻana o ka mahana.

PE (polyethylene)

1. PE hana:

ʻO PE kahi ʻano plastic me ka nui loa o ka puka ma waena o nā plastics.Hōʻike ʻia ia e ka palupalu, non-toxic, haʻahaʻa kumu kūʻai, ka hana maʻalahi, kūpaʻa kemika maikaʻi, ʻaʻole maʻalahi i ka corrosion a paʻakikī paʻi.ʻO ka PE he polymer crystalline maʻamau.Nui kona ʻano.Hoʻohana mau ʻia ka LDPE (polyethylene haʻahaʻa haʻahaʻa) a me HDPE (polyethylene kiʻekiʻe kiʻekiʻe).He mau plastic translucent me ka ikaika haʻahaʻa a me ka umekaumaha kikoʻī o 0.94g/cm3 (ʻoi aku ka liʻiliʻi ma mua o ka wai);Haʻahaʻa haʻahaʻa haʻahaʻa LLDPE resin (ʻoi aku ka haʻahaʻa ma mua o 0.910g/cc, a ʻo ka nui o LLDPE a me LDPE ma waena o 0.91-0.925).He palupalu ka LDPE, (ʻike pinepine ʻia ʻo ke kāpili palupalu) ʻike pinepine ʻia ʻo HDPE he paʻa palupalu paʻakikī.ʻOi aku ka paʻakikī ma mua o LDPE.He mea semi crystalline me ke kiʻekiʻe shrinkage rate ma hope o ka hana ʻana.He ilihune māmā transmittance ma waena o 1.5% a me 4%, nui crystallinity, a ua prone i ke kaiapuni stress pohā.Hiki ke hoʻohana ʻia nā mea me nā hiʻohiʻona kahe haʻahaʻa e hōʻemi i ke koʻikoʻi o loko a hoʻemi i ka haki ʻana.Ke kiʻekiʻe ka mahana ma mua o 60 ℃, maʻalahi ka hoʻoheheʻe ʻana i nā solvents hydrocarbon, akā ʻoi aku ka maikaʻi o kona pale ʻana ma mua o LDPE.

ʻO ka crystallinity kiʻekiʻe o HDPE ke alakaʻi i kona kiʻekiʻe kiʻekiʻe, ikaika tensile, kiʻekiʻe wela distortion wela, viscosity a me ka paʻa kemika.Ua ʻoi aku ka ikaika o ka impermeability ma mua o LDPE.Loaʻa ka ikaika haʻahaʻa o ka PE-HD.Hoʻomalu nui ʻia nā waiwai e ka puʻupuʻu kaumaha a me ka molecular weight distribution.He haiki loa ka puunaue kaumaha mole o HDPE.No ka mānoanoa o 0.91 ~ 0.925g/cm3, kapa mākou iā ia ke ʻano mua o PE-HD;No ka nui o 0.926 ~ 0.94g/cm3, ua kapa ʻia ʻo ia ka lua o ka HDPE;No ka mānoanoa o 0.94 ~ 0.965g/cm3, ua kapa ʻia ʻo ia ke ʻano ʻekolu o HDPE.He maikaʻi nā hiʻohiʻona kahe o ka mea me ka MFR ma waena o 0.1 a me 28. ʻO ke kiʻekiʻe o ke kaumaha molekala, ʻoi aku ka maikaʻi o nā hiʻohiʻona kahe o LDPE, akā ʻoi aku ka ikaika o ka hopena.Hiki i ka HDPE ke pohā i ka pilikia o ke kaiapuni.

Hiki ke hōʻemi ʻia ka māhā ma ka hoʻohana ʻana i nā mea me nā hiʻohiʻona haʻahaʻa haʻahaʻa e hōʻemi i ke kaumaha o loko.He maʻalahi ka hoʻoheheʻe ʻana o HDPE i loko o nā solvents hydrocarbon ke kiʻekiʻe ka mahana ma mua o 60C, akā ʻoi aku ka maikaʻi o kona kūpaʻa solubility ma mua o LDPE LDPE he mea semi crystalline me ka hoʻohaʻahaʻa kiʻekiʻe ma hope o ka hoʻoheheʻe ʻana, mai 1.5% a 4%.ʻO ka LLDPE (linear low density polyethylene) he kiʻekiʻe kiʻekiʻe o ka tensile, ke komo ʻana, ka hopena a me ka pale ʻana i ka waimaka, kahi e kūpono ai ka LLDPE no ke kiʻiʻoniʻoni.ʻO kona kūʻē ʻana i ke koʻikoʻi kaiapuni maikaʻi loa, ke kūpaʻa haʻahaʻa haʻahaʻa haʻahaʻa a me ka pale kaua ʻana i ka LLDPE i mea nani no ka paipu, ka extrusion pā a me nā noi hana a pau.ʻO ka noi hou loa o LLDPE he kiʻi ʻoniʻoni no ka uhi ʻana o ka ʻōpala ʻōpala a me ka pahu wai ʻōpala.

2. Kaʻina hana o PE:

ʻO ka hiʻohiʻona kupaianaha loa o nā ʻāpana PE ʻo ka hoʻoheheʻe nui ʻana, maʻalahi ke emi a me ka deform.He liʻiliʻi ka wai o ka mea PE a ʻaʻole hiki ke maloʻo.He ākea loa ka laulā wela o ka PE a ʻaʻole maʻalahi ka decompose (ʻo ka mahana decomposition he 320 ℃).Inā kiʻekiʻe ke kaomi, kiʻekiʻe ka nui o ka huahana a liʻiliʻi ka emi ʻana.Loaʻa i ka PE ka wai liʻiliʻi.Pono e mālama pono ʻia nā kūlana hana a mālama mau ʻia ka mahana o ka mold (40-60 ℃).ʻO ka crystallinity o PE e pili ana i nā kūlana kaʻina hana.He kiʻekiʻe ke anuanu paʻa wela.Inā haʻahaʻa ka mahana o ka mold, haʻahaʻa ka crystallinity.I ke kaʻina hana crystallization, ma muli o ka anisotropy o ka hoʻohaʻahaʻa ʻana, ua hoʻopaʻa ʻia ke koʻikoʻi o loko, a ʻo nā ʻāpana PE e pili ana i ka deformation a me ka haki.Ke waiho ʻia ka huahana i loko o ka wai wela ma 80 ℃, hiki ke hoʻomaha ke kaomi i kekahi ʻano.I ka wā o ke kaʻina hana, ʻoi aku ka kiʻekiʻe o ka mahana o ka mea a me ka mahana.Pono e haʻahaʻa ke kaomi injection ma ke kumu o ka hōʻoia ʻana i ka maikaʻi o ka huahana.ʻO ka hoʻoluʻu ʻana o ka mold e koi nui ʻia e wikiwiki a ʻaʻahu, a wela ka huahana i ka wā demoulding.

PP (polypropylene)

1. PP hana:

ʻO PP kahi polymer crystalline.Ma waena o nā plastics maʻamau, ʻo PP ka māmā, me ka nui o 0.91g/cm3 wale nō (emi ma mua o ka wai).Ma waena o nā plastic plastics, ʻoi aku ka maikaʻi o ka pale ʻana o ka wela, a ʻo kona mahana deformation wela he 80-100 ℃, hiki ke hoʻolapalapa ʻia i ka wai paila.Loaʻa i ka PP ke koʻikoʻi koʻikoʻi ke kūʻē a me ke ola luhi luhi kiʻekiʻe, ʻike ʻia ʻo "100% glue".ʻOi aku ka maikaʻi o ka hana piha o ka PP ma mua o ka PE.ʻO nā huahana PP he māmā ke kaumaha, ka paʻakikī maikaʻi a me ke kūpaʻa kemika maikaʻi.ʻO nā hemahema o ka PP: ka haʻahaʻa haʻahaʻa haʻahaʻa, ʻaʻole lawa ka rigidity, ka maikaʻi ʻole o ka wā a me ka maʻalahi e hana i ka "pōʻino keleawe".Loaʻa iā ia ma hope o ka emi ʻana.Ma hope o ka demoulding, ua maʻalahi ka makahiki, lilo i palupalu a deform.ʻO PP ka mea kumu nui no ka hana ʻana i nā fibers ma muli o kona hiki ke kala, ke kūpaʻa aahu, ke kūʻē kemika a me nā kūlana waiwai maikaʻi.ʻO PP kahi mea semi crystalline.ʻOi aku ka paʻakikī ma mua o ka PE a ʻoi aku ka nui o ka heheʻe.No ka mea he palupalu loa ka homopolymer PP i ka wā i ʻoi aku ka mahana ma mua o 0 ℃, nui nā mea pāʻoihana PP he copolymers maʻamau me 1 ~ 4% ethylene a i ʻole nā ​​copolymers clamp me ka ethylene kiʻekiʻe.ʻO nā mea Copolymer PP he haʻahaʻa haʻahaʻa haʻahaʻa wela (100 ℃), haʻahaʻa haʻahaʻa, haʻahaʻa haʻahaʻa a me ka rigidity haʻahaʻa, akā ʻoi aku ka ikaika o ka hopena.Hoʻonui ka ikaika o ka PP me ka piʻi ʻana o ka ethylene content.

2. Kaʻina hana o PP:

He maikaʻi ka wai a me ka hoʻoheheʻe ʻana o ka PP ma ka wela hoʻoheheʻe.ʻElua mau hiʻohiʻona o ka PP i ka hana ʻana: ʻo ka mua, e emi nui ka viscosity o PP melt me ​​ka piʻi ʻana o ka wikiwiki shear (emi ʻia e ka wela);ʻO ka lua: kiʻekiʻe kiʻekiʻe o ka molecular orientation a me ka nui shrinkage.ʻO ka mahana hana o PP he 220 ~ 275 ℃.ʻOi aku ka maikaʻi ma mua o 275 ℃.Loaʻa iā ia ke kūpaʻa wela maikaʻi (ʻo ka mahana decomposition he 310 ℃), akā i ka wela kiʻekiʻe (270-300 ℃), hiki ke hoʻohaʻahaʻa inā noho ia i loko o ka pahu no ka manawa lōʻihi.Ma muli o ka emi ʻana o ka viscosity o PP me ka piʻi ʻana o ka wikiwiki o ka shear, hoʻonui i ke kaomi injection a me ka wikiwiki o ka injection e hoʻomaikaʻi i kona wai, shrinkage deformation a me ke kaumaha.Manaʻo ʻia ke ana wela (40 ~ 80 ℃), 50 ℃.Hoʻoholo nui ʻia ka degere crystallization e ka mahana mold, pono e hoʻomalu ʻia ma ka laulā o 30-50 ℃.Hiki i ka hoʻoheheʻe PP ke hele i kahi āpau haiki loa i ka make e hana i kahi ʻoi ʻoi.I ka hoʻoheheʻe ʻana o PP, pono ia e hoʻomoʻi i ka nui o ka wela hoʻoheheʻe (ʻoi aku ka nui o ka wela kikoʻī), a ua wela ka huahana ma hope o ka hoʻoheheʻe ʻia.ʻAʻole pono e hoʻomaloʻo ʻia ʻo PP i ka wā o ka hoʻoili ʻana, a ʻoi aku ka haʻahaʻa o ka shrinkage a me ka crystallinity o PP ma mua o ka PE.Hoʻohana maʻamau ka wikiwiki o ka injection i ka hoʻoheheʻe kiʻekiʻe kiʻekiʻe e hōʻemi i ke kaomi kūloko.Inā loaʻa nā hemahema ma ka ʻili o ka huahana, e hoʻohana ʻia ka hoʻoheheʻe haʻahaʻa haʻahaʻa i ka wela kiʻekiʻe.

Hoʻoholo pū nā ʻano waiwai like ʻole o nā mea maka i nā kaʻina hana like ʻole, no laila ʻokoʻa ka laulā o ka noi.

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