LCPÀÇ »çÃ⼺Çü Á¶°Ç[Injection Molding Conditions for LCP] |
ÀϹÝÀûÀÎ ¼ºÇüÁ¶°Ç[General Molding Conditions] |
Condition Items | E5000Series | E4000Series | E6000Series | E6000HFSeries | E7000Series | |
Pre-drying | Temperature | about 130 °C | ||||
Time | 4 to 24 hours | |||||
Cylinder temperature ( °C) | Rear | 350 - 370 | 330 - 350 | 280 - 320 | 280 - 320 | 280 - 300 |
Center | 370 - 390 | 350 - 370 | 320 - 350 | 320 - 340 | 300 - 320 | |
Front | 390 - 410 | 370 - 390 | 340 - 370 | 340 - 360 | 320 - 340 | |
Nozzle | 390 - 410 | 370 - 390 | 340 - 370 | 340 - 360 | 320 - 340 | |
Suitable resin temperature( °C) | 400 | 380 | 350 | 350 | 320 | |
Tool Temperature( °C) | 40 - 160 | |||||
Injection pressure(MPa) | 120 - 160 | 80 - 160 | ||||
Hold pressure(MPa) | 40 - 60 | 20 - 40 | ||||
Screw back-pressure(MPa) | 1 - 5 | |||||
Injection speed | Middle - High | |||||
Screw revolution(rpm) | 50 - 100 |
¸¸¾à ½Ç¸°´õ ¼³Á¤ ¿Âµµ¿Í ½ÇÁ¦ ¼öÁö ¿Âµµ°¡ ´Ù¸£´Ù¸é, ½ÇÁ¦ÀÇ ¼öÁö ¿Âµµ·Î °ü¸®ÇÒ ÇÊ¿ä°¡ ÀÖ½À´Ï´Ù. |
¿¹ºñ°ÇÁ¶[Pre-drying] | ||||||
SUMIKASUPER LCP´Â Èí¼öÀ² 0.02%·Î ¸Å¿ì ³·±â ¶§¹®¿¡ Àå½Ã°£ °ÇÁ¶´Â ÇÊ¿ä·Î ÇÏÁö ¾Ê½À´Ï´Ù.
ÀϹÝÀûÀ¸·Î, È£ÆÛ µå¶óÀ̾ ÀÌ¿ëÇØ,130¡É¸¦ ±âÁØÇØ,4½Ã°£ ÀÌ»ó 24½Ã°£ À̳»·Î °ÇÁ¶Çϸé ÃæºÐÇÕ´Ï´Ù. | ||||||
¼ºÇü¿Âµµ[Molding Temperature] | ||||||
½Ç¸°´õ ¾ÕºÎºÐ ¹× ³ëÁñºÎÀÇ ¿Âµµ¸¦ ³Ê¹« ¿Ã¸®¸é, »çÃâ½Ã¿¡ ¼öÁö°¡ È£ÆÛÃø¿¡ ¹é Ç÷οìÇϱ⠽¬¿öÁö±â ¶§¹®¿¡ ¹Ù¶÷Á÷ ÇÏÁö´Â ¾Ê½À´Ï´Ù.ƯÈ÷, °íÀ¯µ¿¼ºÀÌ ¿ä±¸µÇ´Â º¹ÀâÇÑ Çü»óÀÇ °Í, ¶Ç L/T°¡ Å« °ÍÀ» ¼ºÇüÇÏ´Â °æ¿ì¿¡´Â, ½Ç¸°´õ ¾ÕºÎºÐ º¸´Ù ³ëÁñºÎºÐÀÇ ¿Âµµ¸¦ Á¶±Ý ³ô°Ô ¼³Á¤ÇÕ´Ï´Ù. ±×¸®°í, °è·® ½Ã°£ÀÌ ¾ÈÁ¤µÇÁö ¾Ê´Â °æ¿ì¿¡´Â, ½Ç¸°´õ ÈĺÎÀÇ ¿Âµµ¸¦ 10~20¡É ³·°Ô ¼³Á¤ÇØ ÁÖ¼¼¿ä. ³ëÁñ ¿ÂµµÀÇ °ü¸®´Â ƯÈ÷ ¸Å¿ì Áß¿äÇϹǷΠ¿Âµµ ¼¾¼ÀÇ À§Ä¡³ª º¸¿Â¿¡´Â ¸Å¿ì Á¶½ÉÇØ ÁÖ¼¼¿ä. ³ëÁñºÎÀÇ ¼³Á¤ ¿Âµµ¿Í ½ÇÁ¦ ¼öÁöÀÇ ¿Âµµ°¡ ´Ù¸£¸é, ½ÇÁ¦ÀÇ ¼öÁö ¿Âµµ·Î °ü¸®°¡ ÇÊ¿äÇÕ´Ï´Ù. SUMIKASUPER LCP´Â, E5000½Ã¸®Áî·Î 400¡ÉÀÌ»ó, E4000½Ã¸®Áî·Î 380¡ÉÀÌ»ó, E6000½Ã¸®Áî·Î 340¡É, E6000HF½Ã¸®Áî·Î 340¡ÉÀÌ»ó, E7000½Ã¸®Áî·Î 320¡ÉÀÌ»óÀÇ ¼ºÇü ¿Âµµ·Î ¾ÈÁ¤µÈ ¹°¼ºÀ» ¾òÀ» ¼ö ÀÖ½À´Ï´Ù. ±×¸®°í, ¿ëµµ¿¡ µû¶ó¼´Â, ÀÌ°Í ÀÌÇÏÀÇ ¿Âµµ·Î ¼ºÇüÀ» ½Ç½ÃÇصµ ½Ç¿ë»ó ¹®Á¦°¡ ¾ø´Â ¹°¼ºÀ» ¾òÀ» ¼ö ÀÖ½À´Ï´Ù¸¸, ¿Âµµ¸¦ ³Ê¹« ³»¸®¸é ¹°¼º ÀúÇϸ¦ µ¿¹ÝÇÏ´Â °æ¿ì°¡ ÀÖ½À´Ï´Ù. (Figure 1, Figure 2) |
||||||
|
||||||
|
||||||
|
||||||
±ÝÇü¿Âµµ[Tool Temperature] | |
SUMIKASUPER LCP´Â ºÐÀÚ°¡ °Á÷Çϱ⠶§¹®¿¡ ¿ëÇØ »óÅ¿¡¼µµ µÚ¾ûÅ´ÀÌ ¾ø°í,¼ºÇü½ÃÀÇ Àü´Ü¿¡ ÀÇÇØ °íºÐÀÚ
¼è»ç½½ÀÌ È帧¹æÇâÀ¸·Î ¹èÇâ ÇÕ´Ï´Ù. °Ô´Ù°¡ °íÃ¼È ¼Óµµ°¡ ¸Å¿ì ºü¸£±â ¶§¹®¿¡, °íüȽÿ¡ À־µ ¿ëÇؽÃÀÇ ¹èÇâ »óŸ¦ À¯ÁöÇÏ°í ÀÖ¾î, ¿ªÇÐ ¹°¼ºÀÇ ±ÝÇü ¿Âµµ¿¡ ÀÇÇÑ ¿µÇâÀº °ÅÀÇ ¾ø½À´Ï´Ù. ¾ãÀºÁ¦Ç°À» ¼ºÇüÇÏ´Â °æ¿ì,¼ºÇü»çÀÌŬÀ» Áß½ÃÇÏ´Â °æ¿ì¿¡´Â 70~100¡É¿¡,Weld °µµ¸¦ °í·ÁÇÏ´Â °æ¿ì¿¡´Â,120~150¡É¿¡ ¼ºÇüÇ¥¸éÀÇ ÆòÈ°¼ºÀ» Áß½ÃÇÏ´Â °æ¿ì¿¡´Â 160~190¡É·Î ¼³Á¤ÇÏ´Â °ÍÀ» ÃßõÇÕ´Ï´Ù. |
|
|
|
»çÃâ¾Ð·Â°ú »çÃâ¼Óµµ[Injection Pressure and Injection Speed] | ||||||||||||||||||||||||
SUMIKASUPER LCP´Â ¿ëÇØ Á¡µµ°¡ ³·°í, À¯µ¿¼ºÀÌ ¶Ù¾î³ª±â ¶§¹®¿¡, ³Ê¹« ³ôÀº »çÃ⠾зÂÀ» ÇÊ¿ä·Î ÇÏÁö ¾Ê½À´Ï´Ù.
E6000½Ã¸®Á ¿¹¸¦ µé¸é, ¼ºÇü ¿Âµµ¸¦ 350¡ÉÀÌ»óÀ¸·Î ¿Ã¸®´Â °ÍÀ¸·Î 40MPaÁ¤µµÀÇ Àú¾Ð¿¡¼µµ ÃæºÐÇÑ À¯µ¿¼ºÀ» ³ªÅ¸³À´Ï´Ù. ±×¸®°í, »çÃ⠾зÂÀ»65~160MPaÀÇ ¹üÀ§¿¡¼ º¯È½ÃÄѵµ ÀÎÀå °µµ´Â °ÅÀÇ º¯ÈÇÏÁö ¾Ê½À´Ï´Ù. »çÃâ ¼Óµµ´Â, ¾ã°í,º¹ÀâÇÑ Çü»óÀ» °¡Áö´Â Á¦Ç°¿¡ ´ëÇؼ´Â, Áß ~°í¼ÓÀ¸·ÎÀÇ ¼ºÇüÀÌ ¹Ù¶÷Á÷ÇÕ´Ï´Ù¸¸, ºñ±³Àû ÈÄÀ°ÀÇ Á¦Ç°À¸·Î Weld°¡ ¹®Á¦°¡ µÇ´Â °æ¿ì¿¡´Â, ±ÝÇü³»ÀÇ Gas»©±â¸¦ °í·ÁÇÑ ´ÙÀ½ 20~40mm/sec.ÀÇ Áß¡¤Àú¼ÓÀÌ ÀûÇÕÇÕ´Ï´Ù. |
||||||||||||||||||||||||
ÆÛ¡¹æ¹ý[Purging Methods] | ||||||||||||||||||||||||
SUMIKASUPER LCPÀÇ ÆÛ¡¹æ¹ý¿¡ ´ëÇÏ¿© ¼³¸í ÇÏ°Ú½À´Ï´Ù. | ||||||||||||||||||||||||
Ãßõ ÆÛ¡Á¦: Z Clean S11 [manufactured by Chisso Corporation] Amte Clean EX [Manufactured by Matsushita Amtech Corporation] |
||||||||||||||||||||||||
The following precautions must be taken when performing purging operations: | ||||||||||||||||||||||||
|
||||||||||||||||||||||||
µ¿ÀÏ Grade¸¦ »ç¿ëÇÑ °æ¿ì | ||||||||||||||||||||||||
|
||||||||||||||||||||||||
Note) When using different colored resins from the same LCP grade, please omit the above procedures 5, 6 and 7. | ||||||||||||||||||||||||
SUMIKASUPER LCP·Î º¯È¯ | ||||||||||||||||||||||||
|
Flashing Defect | |
SUMIKASUPER LCP´Â °íÀ¯µ¿À¸·Î Flash°¡ ¹ß»ýÇϱ⠾î·Æ°í,¾ãÀº¼ÒÇüÀÇ ÀüÀÚºÎÇ°À» ¼ºÇüÇϴµ¥ ÀûÇÕÇÑ Àç·á ÀÔ´Ï´Ù.
Figure 5´Â Flash Ư¼ºÀ» ³ªÅ¸³»´Â ±ÝÇüÀ» ÀÌ¿ëÇØ Æò°¡ÇÑ °á°ú¸¦ ³ªÅ¸³À´Ï´Ù. ÀÌ ±×¸²Àº,(i.e., areas where short shots defect and flashing defect occur).³ªÅ¸³À´Ï´Ù. SUMIKASUPER LCP´Â Short Shots and flashingÀÌ ¹ß»ýÇÏÁö ¾Ê´Â ¿µ¿ªÀÌ ³Ð°Ô Á¸ÀçÇϸç, PPSȤÀºPBT´Â flash°¡ ¹ß»ýÇϱ⠽±°í,thin-walled products¸¦ ¼ºÇü½Ã¿¡´Â Short Shot¿µ¿ªÀ» È®º¸Çϴ°ÍÀÌ °ï¶õÇÕ´Ï´Ù. |
|
|
|
|
|