Moulding tej yam kev mob rau txhaj tshuaj molding cov ntaub ntawv

Khoom npe molding tej yam kev mob ABS
1. Xaiv qhov tsim nyog sprue thiab rooj vag raws li flowability.
2. Xaiv lub fusion tsim nyog rau lub rooj vag txoj hauj lwm.
3. Vim muaj kev kub siab molding, lub retraction qaij yuav tsum siab tshaj 2 degree. 4.
4. Tus nqi shrinkage yuav tsum yog li ntawm 0.5 feem pua ​​. 5.
5. Feem ntau siv rau cov khoom kub plated, kev ceev faj yog raws li hauv qab no: (1) Cov khoom siv tubing kub yuav tsum siab, txog 220 degree 250 degree (2) Qhov kub txhaj tshuaj yuav tsum tau qeeb (siv txoj kev pressurization thib ob) thiab txhaj tshuaj. siab yuav tsum tsawg; (3) Yuav tsum tsis txhob siv cov pwm tso tawm; (4) Yuav tsum tsis txhob muaj lub dab dej shrinkage thiab tsis muaj cov cim ntws ntawm fusion kab; (5) Yuav tsum tsis muaj kev raug mob ntawm qhov chaw ntawm cov khoom tiav.
6. Heating temperature 180290 degree , mold temperature 5080 degree , material tube temperature 200230 degree , ejecting material temperature 200240 degree , injection pressure 7001500kg/cm², minimum operation temperature 260 degree .
7. Using hot air dryer, drying temperature 80100 degree , time required 24 hours (less than 0.3 percent ), material tube temperature 220240 degree for the first section; 210240 degree for the second section; 180230 degree for the third section; 150180 degree for the fourth section; mold surface temperature 5090 degree , injection pressure 5002100kg/cm².
8. Temperature setting: injection nozzle 203295 degree , front section 220295 degree , middle section 210290 degree , back section 180210 degree ; screw speed 70150rpm, mold temperature 1080 degree , holding pressure 3060 percent , back pressure 100250kg/cm².
9. ceev 1.041. degree, molding shrinkage 0.30.8 feem pua, kub deformation kub 66107 degree (88113 degree).

AS (SAN)
 1. If there is a risk of cracking in the molded product, pay attention to the design of the molded product. In special cases, use a retraction tilt of more than 1 degree , and pay attention to the mold must not have a low sink part.
2. Kev tsim shrinkage tus nqi yog li ntawm 0.45 feem pua, cua sov kub 170310 degree, siv cua kub tshuab ziab khaub ncaws, lub sij hawm ziab 23 teev (tsawg dua 0.1 feem pua), ziab kub 80100 degree, cov khoom siv raj kub 180290 degree, 3.
3. temperature setting: injection nozzle 205240 degree , front section 190235 degree , middle section 180230 degree , back section 180210 degree ; screw speed 70150rpm, mold temperature 3580 degree , injection pressure 7002300kg/cm², holding pressure 3060 percent , back pressure 100200kg/cm².
4. linear expansion coefficient 0.0{{10}}0060.00008/ degree , molding shrinkage 0.20.7 percent , heat deflection temperature 9193 degree (8899 degree ), glass transfer temperature 125 degree , conduction coefficient 0.0003cal.cm.s.sm/ degree , density 1.061.08g/cm³, tensile strength 650800kgf/cm², Elongation 23 percent , Elasticity 3200037000 kgf/cm², 2.13.2kgf.cm/cm, Rockwell hardness M80, Transparent, Water absorption 0.20.3 percent .

CA
1. Cov khoom yuav tsum yog ua ntej- ziab, ziab kub 7580 degree, ziab lub sij hawm 26 teev, tshwj xeeb nqus 1.29.
2. Kev tsim shrinkage tus nqi yog li ntawm 0.5 feem pua ​​.
3. Cua sov kub 170265 degree, pwm kub 2080 degree .

CAB
1. Cua sov kub 170265 degree, pwm kub 2080 degree .
2. Qhuav kub 7580 degree, ziab lub sij hawm 26 teev.

 CP

1. Cua sov kub 170265 degree, pwm kub 2080 degree .

 EVA

 1. temperature setting: injection nozzle 185 degree , front section 166 degree , middle section 160 degree , back section 150 degree ; screw speed max, mold temperature 3545 degree , back pressure 10kg.
2. Material tube temperature 150180 degree , injection nozzle 150 degree , first section 150 degree , second section 140 degree , third section 120 degree , mold temperature 3040 degree , injection pressure 600800kg/cm², molding shrinkage 0.72 percent , drying temperature 4050 degree , drying time 24 hours.

 FR-PET
1. UL ntev -lub sij hawm tshav kub tsis kam 140 degree, kub deflection kub mus txog 225 degree .
2. Tsawg crystallization tus nqi, nruj kom qhuav thiab ua cov txheej txheem.
3. Qhuav: 140 degree rau 3 teev los yog 120 degree rau 58 teev. 4. Txhaj kub: 235 degree 250 degree 5. Pwm kub: 40 degree 80 degree .

HDPE
1. qhov kub thiab txias: txhaj nozzle 210 degree, pem hauv ntej seem 200 degree, nruab nrab seem 200 degree, rov qab seem 195 degree; ntsia hlau ceev 140 rpm, rov qab siab 15kg.
2. linear expansion coefficient 0.
HIPS 1. qhov kub thiab txias: txhaj nozzle 220240 degree, pem hauv ntej seem 210230 degree, nruab nrab seem 200230 degree, rov qab seem 190215 degree; ntsia hlau ceev 135215rpm, pwm kub 25 degree, rov qab siab 5-10kg tshwj xeeb lub ntiajteb txawj nqus 1.05g/cc

HIPS

1. qhov kub thiab txias: txhaj nozzle 220240 degree, pem hauv ntej seem 210230 degree, nruab nrab seem 200230 degree, rov qab seem 190215 degree; ntsia hlau ceev 135215rpm, pwm kub 25 degree, rov qab siab 5-10kg tshwj xeeb lub ntiajteb txawj nqus 1.05g/cc

2. coefficient ntawm linear expansion 0.

LCP Ⅱ

1. ceev 1.351.45g/cc, deformation kub 198310 degree, molding shrinkage 0.11.0 feem pua ​​.
2. fast curing, resin temperature 300 degree , mold temperature 100 degree , injection pressure 300kg/cm², fast injection speed, short forming time, ready drying 150 degree , takes more than 4 hours, glass fiber reinforced 170, fluidity 210.

 LCP Ⅲ
1. ceev 1.351.45g/cc, deformation kub 198310 degree, molding shrinkage 0.11.0 feem pua ​​.
2. fast curing, resin temperature 260 degree , mold temperature 100 degree , injection pressure 300kg/cm², fast injection speed, short forming time, pre-drying 140 degree , 3 hours required, glass fiber reinforced 230.

LDPE

1. temperature setting: injection nozzle 140190 degree , front section 140200 degree , middle section 135195 degree , back section 130180 degree ; screw speed 210220rpm, mold temperature 1070 degree , material tube temperature 150310 degree , back pressure 5-10kg, mold temperature 3050 degree , injection pressure 360500kg/cm².
2. Coefficient ntawm linear expansion 0.

PA
1. injection temperature and drying temperature must be high; injection pressure and holding pressure should not be too high and too long, to inject the male mold at high speed, there should be exhaust channels to avoid scorching of the rubber; back pressure 50150kg/cm².
 2. The plastic should not be put into the melt cylinder before it reaches the dry level, because it is easy to be stuck in the rod groove of the feeding section with strong water, forming a difficult phenomenon of feeding.
3. Thaum sib sau, nws yog ib qho yooj yim kom txias ntawm qhov txhaj tshuaj nozzle. Yog tias qhov kev txhaj tshuaj siab tau nce ntxiv thaum lub sijhawm txias, nws yooj yim los rhuav tshem cov tshev valve, yog li kev tswj qhov kub ntawm qhov txhaj tshuaj nozzle yuav tsum tsim nyog. Txhawm rau tiv thaiv cov yas los ntawm kev ntws mus rau hauv pwm, nws raug nquahu kom siv lub nozzle tswj.
4. When changing to other plastics for injection, it should be noted that the original nylon heating temperature is 270 degree or more, while the general material heating temperature is only about 200 degree for operation, so the melting barrel must be heated to the nylon heating temperature before operation, otherwise it is easy to break the screw's check valve and dispensing head.
5. Txoj kev molding yuav tsum tau soj ntsuam kom ua tau zoo. 6.
6. Txhawm rau tiv thaiv kev tsim ntawm ntug kev pov tseg, cov pwm precision yuav tsum tau siv.
7. Thaum siv cov pwm pwm, qhov kub ntawm cov khoom molding yuav tsum crystallized.
8. Kev tsim cov khoom molded yuav tsum tiv thaiv kev nyuaj siab thiab xav txog qhov ruaj khov ntawm qhov ntev.
9. Lub shrinkage tus nqi ntawm molding yog li ntawm 1.52.5 feem pua.
10. The heating temperature of nylon 6 (PA6) is 220300 degree , the mold temperature is 100160 degree , the material tube temperature is 200260 degree , the injection material temperature is 220300 degree , the injection pressure is 7002000kg/cm², the minimum operation temperature is 225 degree , the melting point temperature is 215 degree , the molding temperature is 10300 degree , the drying temperature is 75100 degree , the time required is 26 hours, and the use time is 26 hours. It takes 26 hours, using dehumidifying dryer, injection pressure 7502000kg/cm2, material tube temperature 230 degree for the first section; 230 degree for the second section; 220 degree for the third section; 210 degree for the fourth section; mold surface temperature 2570 degree . Coefficient of linear expansion 0.000083/ degree , molding shrinkage 0.62.1 percent , specific gravity 1.11.4 heat deflection temperature 6770 degree (149185 degree ). 11. Nylon 66(PA66) heating temperature 250380 degree , mold temperature 30100 degree , material tube temperature 240300 degree , injection material temperature 250310 degree , injection pressure 6002100kg/cm², minimum operation temperature 260 degree , melting point temperature 215 degree , molding temperature 260320 degree , drying temperature 8090 degree . It takes 36 hours, using dehumidifying dryer, linear expansion coefficient 0.000080.00013/ degree , molding shrinkage 1.32.4 percent , specific gravity 1.11.4, heat deflection temperature 6686 degree . 12. temperature setting: injection nozzle 235265 degree , front section 235245 degree , middle section 210240 degree , rear section 195230 degree ; screw speed 100105rpm, mold temperature 3540 degree , back pressure 5-10kg. 13. density 0.941.14g/cc, deformation temperature 35121 degree , molding shrinkage 0.7 2.5 percent . PAR 1. density 1.171.31g/cc, deformation temperature 95175 degree , molding shrinkage 0.81.0 percent . 2. glass transfer point 190 degree , fast curing, resin temperature 370 degree , mold temperature 130 degree , injection pressure 1000kg/cm², fast injection speed, ordinary forming time, ready drying 140 degree , takes 6 hours, glass fiber reinforced 35, fluidity 50.

 PBT

1. Qhov kub ntawm lub tog raj kheej yaj yuav tsum tau tswj ntawm 230270 degree, thiab pwm kub yuav tsum tau teem rau ntawm 40 degree 90 degree.

2. When you want to get a good glossy surface, it is advisable to increase the temperature, and if necessary, to carry out sufficient preparatory drying. The required injection pressure is about 5001300kg/m². 3.
3. Temperature setting: nozzle 250 degree , front section 245 degree , middle section 235 degree , back section 230 degree ; screw speed 80rpm, mold temperature 40120 degree , back pressure 10kg, material tube temperature 230270 degree , injection pressure 3001000kg/cm², drying temperature 100140 degree , time required 28 hours.
4. ceev 1.291.50g/cc, deformation kub 50110 degree, molding shrinkage 1.32.4 feem pua, tshwj xeeb nqus 1.31.6.
 PC
 1. The injection pressure is high, and the temperature inside the tube is too high or stagnant for a long time, it is easy to start thermal decomposition, discoloration and reduce the physical properties, so the mold temperature should be 85 degree 120 degree .
 2. It is especially difficult to form thick products because the finished products are prone to residual stress, which will cause future rupture.
 3. High temperature and high pressure are required for forming, so screw type forming shuttle should be used.
4. Cov khoom yuav tsum tau qhuav kom txaus ua ntej siv.
5. Cov rooj vag thiab cov neeg khiav dej num yuav tsum tau tsim nrog cov dej ntws tsis zoo. 6.
6. Cov qauv tsim ntawm cov khoom molded yuav tsum nyob ze rau lub thickness ntawm lub cev nqaij daim tawv kom tsis txhob hlau qhov chaw inlay. Tsis tas li ntawd, lub retraction qaij yuav tsum siab tshaj 2 degree.
 7. shrinkage rate 0.40.7 percent , specific gravity 1.21.5. 8. heating temperature 260320 degree , mold temperature 80120 degree , material tube temperature 260310 degree , ejecting material temperature 280320 degree , injection pressure 8001500kg/cm², minimum operating temperature 260 degree . 9. Using dehumidifying dryer, drying temperature is 105120 degree (below 0.020.03 percent ), taking 24 hours, material tube temperature is 260270 degree for the first section; 260270 degree for the second section; 240250 degree for the third section; 220230 degree for the fourth section; mold surface temperature is 4060 degree . 10. temperature setting: injection nozzle 275305 degree , front section 270275 degree , middle section 265275 degree , rear section 250270 degree ; screw speed 50115rpm, mold temperature 60120 degree , injection pressure 7002100kg/cm², back pressure 5-15kg. 11. density 1.20g/cc, deformation temperature 120 146 degree , coefficient of linear expansion 0.000066/ degree , heat deflection temperature 129135 degree (141 degree ),.

PCTFE
1. Tsim lub rooj vag thiab khiav kom zoo txaus. 2. 2. Kev txhaj tshuaj molding tshuab yuav tsum tau siv. 3. 3. Xaiv cov molding tej yam kev mob uas yuav tiv thaiv kom txhob discoloration. 4. Siv los tiv thaiv- cov pwm pwm thiab cov khoom siv thiab kho qhov chaw. 5. 5. Tus nqi shrinkage ntawm molding yog li ntawm 0.5 feem pua ​​.

PE
1. High density PE cov ntaub ntawv muaj qhov pom tseeb crystallization kub, yog li nws yog qhov zoo dua los ua kom nrawm nrawm. 2. 2. Rau cov khoom siv nqaij tuab, nws yog ib qho tseem ceeb tshwj xeeb tshaj yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm 5}} cov khoom siv rov qab yuav tsum yog qhov tseeb, yog tias muaj kev poob lossis raug mob, cov khoom yuav raug ntxiv maj mam. (Vim qhov rov qab ntawm cov yas, qhov kev txhaj tshuaj rau hauv pwm yog txo, thiab cov khoom molten yog rov qab rau hauv seem metering, kom cov khoom tshiab nyob rau hauv seem noj yog khaws cia, ua rau cov metabolism tsis ua haujlwm, yog li tsim. cov khoom molded nrog unsolid zoo, muaj zog shrinkage thiab siab defect npaum li cas.) 4. Cov pwm tsim ( rooj vag, khiav) muaj cov khoom siv ceev ceev. 5. Txais txoj kev ua kom txias nrog kev ua kom txias txias. 6. 6. Kev siv cov ntsia hlau molding tshuab zoo dua, zoo flowability; tsis xav tau kev txhaj tshuaj siab, tuav lub siab yuav tsum ntev dua 3060 feem pua. 7. Tus nqi shrinkage yog 2.5 feem pua ​​​​thiab 2.0 feem pua ​​​​ntawm lub kaum sab xis ntawm txoj cai. 8. Cov khoom tsim yuav tsum tau tsim los tiv thaiv warping thiab deformation. 9. Tsawg