×ÆÈÈË¿£¨GWT£©²âÊÔÊÇÕë¶ÔÎÞÈËÖµÊصçÆ÷µÄÇ¿ÖÆÐÔ²âÊÔ£¬Æä³ß¶È¼°¼ì²âÒªÁìÊÇÓÉIECÖƶ¨µÄ£¬Êǵç×Ó²úÎï³ö¿ÚÅ·ÖÞÊг¡ÖØÒªµÄ³ß¶ÈÖ®Ò»¡£GWTÊÇÓÉIEC60335³ß¶ÈÖÐÈý¸ö²âÊÔ×é³ÉµÄGWIT¡¢GWFI¡¢GWT¡£
ͨË×µØ˵£¬×ÆÈÈË¿ÊÔÑéGWT´ÓµÍζȵ½¸ßζÈ×öһϵÁеÄÊÔÑ飬µÚÒ»´Î·ºÆð×Å»ðµÄÄÇ´ÎÊÇ×ÆÈÈË¿ÆðȼζÈGWIT£¬´¦ÓںϸñºÍ²»ºÏ¸ñÁÙ½ç“Ç¡ºÃºÏ¸ñ”µÄÄÇ´ÎÊÇ×ÆÈÈË¿¿ÉȼÐÔÖ¸ÊýGWFI¡£
ÑϽ÷°æ½ç˵ÈçÏÂ
¢ÙGWIT£¨Glow Wire Ignition Temperature£¬×ÆÈÈË¿Æðȼζȣ©£ººâÁ¿ÖÊÁÏÔÚ×ÆÈÈË¿²âÊÔÖÐÆðȼµÄ×îµÍζȡ£²âÊÔÖУ¬Èç¹ûÖÊÁÏÔÚÌض¨Î¶ÈÏÂÆðȼÇÒȼÉÕʱ¼äÁè¼Ý5Ã룬Ôò¼Ç¼¸ÃζÈΪGWIT¡£
¢ÚGWFI£¨Glow Wire Flammability Index£¬×ÆÈÈË¿¿ÉȼÐÔÖ¸Êý£©£ººâÁ¿ÖÊÁÏÔÚ×ÆÈÈË¿²âÊÔÖÐÆðȼºóÄÜ×ÔÐÐϨÃðµÄ×î¸ßζȡ£²âÊÔÖУ¬Èç¹ûÖÊÁÏÔÚÒÆ¿ª×ÆÈÈË¿ºó30ÃëÄÚ»ðÑæϨÃðÇÒ²»ÒýȼÏ·½µÄ°ü×°Ö½£¬Ôò¼Ç¼¸ÃζÈΪGWFI¡£
×ÆÈÈË¿Æðȼζȣ¨GWIT£©×÷ΪÆÀ¼ÛËÜÁÏÖÊÁÏ·À»ðÐÔÄܵÄÖØÒªÖ¸±ê£¬Æä²â¶¨ÒªÁìºÍÓ°ÏìÒòËصÄÑо¿ÏÔµÃÓÈΪÖØÒª¡£±¾ÎĽ«ÉîÈëÁ˽âGWITµÄ²â¶¨ÒªÁ졢̽ÌÖÆäÊÜÄÄЩÒòËصÄÓ°Ï죬²¢Õ¹ÍûGWITÓÅ»¯µÄÑо¿Æ«Ïò¼°Ó¦ÓÃÌôÕ½¡£
Ò»£ºGWIT²âÊÔÔõô²Ù×÷£¿
¢Ù²âÊÔÔÀí
• GWITÊDZȳ߶Ȼ¯ÊÔÑ鷨ʽ²âµÃµÄ×î¸ßζȸ߳ö25 ¡æ(»ò 30¡æ)µÄζȡ£Ôڴ˹ý³ÌÖУ¬ÊÜÊÔÖÊÁϲ»Æðȼ£¬»òÈκÎÒ»´Î»ðÑæÏÖÏóÖÐÁ¬ÐøÓÐÑæȼÉÕ²»Áè¼Ý5 s£¬ÇÒÊÔÑù²»»áÍêÈ«ÉÕ¾¡¡£³£¼ûµÄ³ß¶ÈÓУºGB/T 5169.13-2024£¬IEC 60695-2-13-2021¡£
¢ÚÒªº¦²½Öè
• ÑùÆ·ÖƱ¸£º°´³ß¶È³ß´ç£¨³¤×¿í≥60×60 mm£©ÖÆÑù£¬Ê×Ñ¡ºñ¶ÈÖµ°üÂÞ0.1 mm±0.02 mm¡¢0.2 mm±0.03 mm¡¢0.4 mm±0.04 mm¡¢0.75 mm±0.15 mm¡¢1.5 mm±0.15 mm¡¢3.0 mm±0.25 mm »ò 6.0 mm±0.4 mm¡£È·±£ÍâòƽÕû¡¢ÎÞȱÏÝ¡£
• ÊÔÑéÆðʼζȼûϱí
• ÊÔÑéÅоݣºÈç¹ûÊÔÑùÂú×ãÒÔÏÂÌõ¼þ£¬ÔòÈÏΪͨ¹ý±¾ÊÔÑ飺
a)²»Æðȼ£»
b) Èç¹û×Ü»ðÑæÏÖÏóʱ¼ä(tr)²»Áè¼Ý5s£¬ÇÒÊÔÑùûÓб»ÍêÈ«ÉÕ¾¡¡£
¢ÛÉ豸ҪÇó
• »·¾³Ìõ¼þ£ºÎ¶È15°C~35°C£¬Êª¶È£º≤75%RH¡£
• ×ÆÈÈË¿²âÊÔÒÇÐè¾ß±¸¾«È·¿ØΡ¢Ñ¹Á¦ºÍʱ¼ä¿ØÖƹ¦Ð§¡£
¶þ£ºÄÄЩÊÇÓ°ÏìGWITµÄÖ÷ÒªÒòËØ£¿
¢ÙÖÊÁÏÉí·Ö
• ¸ßÎÂËÜÁÏ£¨PEEK¡¢PI£©£º·Ò·¼»·»ò¸ÕÐÔÁ´½á¹¹£¨ÈçPEEKµÄÃÑͪ¹Ç¼Ü£©¾ßÓиßÆÊÎöζȣ¨£¾500°C£©£¬GWITÆÕ±é≥900°C¡£
• ͨÓÃËÜÁÏ£¨PP¡¢PE£©£ºÏßÐÔÁ´½á¹¹Ò×ÈȽ⣬GWITͨ³£½ö650~750°C¡£ÐèÒÀÀµ×èȼ¼ÁÌáÉýÐÔÄÜ¡£
• ½á¾§ÐÔÖÊÁÏ£¨PA¡¢PBT£©£ºÈÛÈÚζȣ¨Tm£©¸ßÇÒÈÛÌåÕ³¶È´ó£¬¿ÉÑÓ»ºµÎÂ䣨ÈçPA66µÄTm≈260°C£¬GWIT≥800°C£©¡£
¢Ú¼Ó¹¤¹¤ÒÕ
• ×¢ËÜζÈÓëÀäÈ´ËÙÂÊ£ºÓ°ÏìÖÊÁϽᾧ¶È¡£¸ß½á¾§¶ÈÖÊÁÏ£¨ÈçPBT£©Í¨³£¾ßÓиü¸ßµÄGWIT¡£
• ÖÊÁϺñ¶È£º
- ½ÏºñÑùÆ·£¨Èç4~5 mm£©£ºÈÈÁ¿ÔÚÖÊÁÏÄÚ²¿»ýÀÛ¸üÏÔÖø£¬ÍâòÉýÎÂËÙÂʽÏÂý£¬µ«ÄÚ²¿ÈÈÈÝÁ¿´ó£¬¿ÉÄÜÑÓ³¤È¼ÉÕʱ¼ä¡£½ÏºñÑùÆ·Òò×ÔÉíÖغÍÈÈÈÝÁ¿´ó£¬ÈÛÈÚµÎÂä·çÏյͣ¬¿É¸üÕæʵ·´Ó³ÖÊÁÏÆðȼÌØÐÔ¡£
- ½Ï±¡ÑùÆ·£ºÈÈÁ¿¿ìËÙͨ±¨ÖÁ·´Ã棬ÍâòζȲ»Ò×ά³Ö£¬¿ÉÄÜÐè¸ü¸ßζȲÅÆøÆðȼ£»µ«¹ý±¡£¨È磼2 mm£©Ò×±»×Æ´©£¬µ¼Ö²âÊÔÎÞЧ¡£±¡ÑùÆ·£¨ÓÈÆäÈÈËÜÐÔÖÊÁÏ£©Ò×ÈÛÈÚµÎÂ䣬¿ÉÄÜÒòµÎÂäÎïÒýȼÏ·½ÃÞÖ½¶øµ¼Ö²âÊÔÌáÇ°ÖÕÖ¹¡£
¢ÛÈȽµ½âÐÐΪ
• ³ÉÌ¿ÄÜÁ¦£ºÖÊÁÏÔÚ¸ßÎÂÏÂÐγÉÖÂÃÜÌ¿²ã¿É×è¸ôÈÈÁ¿ºÍÑõÆø£¬Ìá¸ßGWIT£¨È纬¹èͪµÄPC/ABSºÏ½ð£©¡£
• ÆÊÎö²úÎ»Ó·¢ÐÔ¿ÉȼÆøÌ壨ÈçÌþÀࣩ»á¼ÓËÙȼÉÕ£¬½µµÍGWIT¡£
¢Ü²âÊÔÌõ¼þ
• ×ÆÈÈË¿½Ó´¥Ñ¹Á¦£ºÑ¹Á¦¹ý´ó»á¼ÓËÙÈÈÁ¿Í¨±¨£¬µ¼ÖÂGWIT½µµÍ¡£
• »·¾³ÑõŨ¶È£º¸ßÑõ»·¾³£¨Èç>21%£©¿ÉÄÜÏÔÖø½µµÍGWIT¡£
Èý£ºÈçºÎÓÅ»¯GWIT£¿
¢Ù×èȼ¼ÁÐͬЧӦÑо¿ÄÉÃ×¼¶×èȼ¼Á£¨ÈçÄÉÃ×ð¤ÍÁ£©Ó봫ͳ×èȼ¼ÁµÄÐͬ×÷Óã¬ÒÔÌá¸ßÈÈÎȶ¨ÐÔ²¢¼õÉÙÌí¼ÓÁ¿¡£
¢ÚÖÊÁϽṹÉè¼Æ¿ª·¢¶à²ã¸´ºÏÖÊÁÏ£¬±í²ãʹÓøßGWITÖÊÁÏ£¨Èç¾ÛÃÑÃÑͪPEEK£©£¬ÄÚ²ã¼æ¹ËÁ¦Ñ§ÐÔÄÜ¡£
¢Û¶¯Ì¬ÈÈ·ÖÎö½áºÏÈÈÖØ·ÖÎö£¨TGA£©ºÍ׶ÐÎÁ¿ÈÈÒÇ£¨Cone Calorimeter£©Êý¾Ý£¬Ô¤²âGWITÓëÖÊÁÏÈȽµ½â¶¯Á¦Ñ§µÄ¹Øϵ¡£
¢Ü³ß¶È»¯¸ïÐÂÕë¶ÔÐÂÐÍÖÊÁÏ£¨ÈçÉúÎï»ùËÜÁÏ£©£¬Íƶ¯GWIT²âÊԳ߶ȵÄÊÊÓ¦ÐÔ¸üС£
ËÄ£ºÓ¦ÓÃÓëÌôÕ½
• Ó¦ÓãºGWIT¹ã·ºÓÃÓÚµç×ÓµçÆ÷Íâ¿Ç¡¢¾øÔµÖÊÁϵÈÁìÓòµÄ·À»ðÄþ¾²ÈÏÖ¤£¨ÈçUL¡¢IEC³ß¶È£©¡£
• ÌôÕ½£ºÆ½ºâ¸ßGWITÓëÖÊÁϳɱ¾¡¢¼Ó¹¤ÐÔÄܼ°»·¾³ÓѺÃÐÔ£¨ÈçÎÞ±»¯Ç÷ÊÆ£©¡£
×ܽá
GWIT¾ÍÏñËÜÁϵÄ"·À»ð¿¼ÊÔ·ÖÊý"£¬Í¨¹ýÓÅ»¯ÖÊÁϺ͹¤ÒÕ¿ÉÒÔÄø߷֡£Ñ¡ÔñºÏÊʺñ¶È¡¢Ìí¼Ó×èȼ¼Á¡¢¿ØÖƼӹ¤Ìõ¼þ£¬¶¼ÄÜ×ÊÖúËÜÁÏͨ¹ýÕâÏîÖØÒª²âÊÔ£¡Î´À´Ñо¿¿Éͨ¹ý×èȼÐͬЧӦºÍÖÊÁϽṹ´´Ð½øÒ»²½ÌáÉýGWIT£¬Í¬Ê±Íƶ¯²âÊԳ߶ÈÓë¼¼ÊõÉú³¤µÄͬ²½¸üС£