Database error: Invalid SQL: select id,title from pwn_News_con where catid=(select catid from pwn_News_con where id=420) and uptime>(select uptime from pwn_News_con where id=420) order by uptime asc limit 1
MySQL Error: 1146 (Table 'nbyuanbo.pwn_News_con' doesn't exist)
#0 dbbase_sql->halt(Invalid SQL: select id,title from pwn_News_con where catid=(select catid from pwn_News_con where id=420) and uptime>(select uptime from pwn_News_con where id=420) order by uptime asc limit 1) called at [/www/users/US304602/WEB/includes/db.inc.php:65] #1 dbbase_sql->query(select id,title from {P}_News_con where catid=(select catid from {P}_News_con where id=420) and uptime>(select uptime from {P}_News_con where id=420) order by uptime asc limit 1) called at [/www/users/US304602/WEB/news/module/NewsPage.php:33] #2 NewsPage() called at [/www/users/US304602/WEB/includes/common.inc.php:524] #3 PrintPage() called at [/www/users/US304602/WEB/news/html/index.php:15]
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Database error: Invalid SQL: select id,title from pwn_News_con where catid=(select catid from pwn_News_con where id=420) and uptime<(select uptime from pwn_News_con where id=420) order by uptime desc limit 1
MySQL Error: 1146 (Table 'nbyuanbo.pwn_News_con' doesn't exist)
#0 dbbase_sql->halt(Invalid SQL: select id,title from pwn_News_con where catid=(select catid from pwn_News_con where id=420) and uptime<(select uptime from pwn_News_con where id=420) order by uptime desc limit 1) called at [/www/users/US304602/WEB/includes/db.inc.php:65] #1 dbbase_sql->query(select id,title from {P}_News_con where catid=(select catid from {P}_News_con where id=420) and uptime<(select uptime from {P}_News_con where id=420) order by uptime desc limit 1) called at [/www/users/US304602/WEB/news/module/NewsPage.php:46] #2 NewsPage() called at [/www/users/US304602/WEB/includes/common.inc.php:524] #3 PrintPage() called at [/www/users/US304602/WEB/news/html/index.php:15]
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浙江噴涂設備靜電粉末噴涂設備的組成-寧波北侖云博機械設備有限公司
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浙江噴涂設備靜電粉末噴涂設備的組成
作者:管理員    發布于:2016-02-16 15:07:50    文字:【】【】【
浙江噴涂設備靜電粉末噴涂設備的組成:
   浙江噴涂設備高頻高壓靜電發生器:高頻高壓靜電發生器能夠分為高壓和低壓兩部分,它提供給噴涂用的高電壓低電流,利用噴槍的極針或噴杯產生強大的電場。
  噴槍:噴槍的手柄,噴嘴和極針或噴杯為金屬,其他均為尼龍制品。用尼龍的目的是電絕緣性好,它使噴涂時粉末霧化并將高頻高壓靜電發生器輸送來的高壓電通過噴槍的極針或旋杯,在噴槍與被噴工件之間形成電場。
  供粉桶:它是裝粉末用的,并通過壓縮空氣將粉末輸送到噴槍去。
  空氣壓縮機:空氣壓縮機供給0.3~0.4MPa的壓縮空氣,所輸出的壓縮空氣必須通過油水分離器把水分除去。
  空氣調壓閥:空氣調壓閥有兩只,一只裝在供粉桶上,輸入壓力為0.5MPa,輸出壓力為0.05~0.15MPa。另一只裝在噴槍前面的風管上,輸入壓力0.5MPa,輸出壓力0.3~0.4 MPa,其目的是使壓縮空氣的壓力穩定。
  聚氯乙烯塑料軟管:聚氯乙烯塑料透明軟管直徑為5~6mm,耐壓在0.5MPa,它的特點是輕便、耐磨,它是輸送壓縮空氣和粉末。
  
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