執(zhí)行器IC20-60W3T芯科技，芯創(chuàng)新；88024508
產生缺陷的因素比較多也比較復雜，它既有材料本身的缺陷又有加工制造工藝問題以及熱處理工藝的不正確所造成的缺陷。那么它們?yōu)楹萎a生安全上的危害，如何避免此類問題的發(fā)生呢?現(xiàn)以三通為例對此逐一做一分析。原材料的問題我們知道，對于承受高溫高壓及易燃易爆介質的管件來說.原材料的質量如何，直接影響到管件的質量用于制造此類管件的管材，對于碳鋼管來說，多數(shù)采用GB531—85《高壓鍋爐用無縫鋼管》、GB6479—86《化肥設備用高壓無縫鋼管》GB9448—88《石油裂化用無縫鋼管》以及GB8163—87{輸送流體用無縫鋼管》等標準規(guī)定的材料。
ALLEN BRADLEY觸摸屏 2711NL5
ALLEN BRADLEY觸摸屏 2711NL6
ALLEN BRADLEY觸摸屏 2711NL7
ALLEN BRADLEY觸摸屏 2711NL9
ALLEN BRADLEY觸摸屏 2711NM13
ALLEN BRADLEY觸摸屏 2711NM15
ALLEN BRADLEY觸摸屏 2711NM2
ALLEN BRADLEY觸摸屏 2711NM232
ALLEN BRADLEY觸摸屏 2711NR5K
ALLEN BRADLEY觸摸屏 2711NR7T
ALLEN BRADLEY觸摸屏 2711NV7K
ALLEN BRADLEY觸摸屏 2711NV7T
ALLEN BRADLEY觸摸屏 2711PB10C22A9P
ALLEN BRADLEY觸摸屏 2711PB10C22A9PB
ALLEN BRADLEY觸摸屏 2711PB10C22D9P
ALLEN BRADLEY觸摸屏 2711PB10C22D9PB
ALLEN BRADLEY觸摸屏 2711PB10C4A8
ALLEN BRADLEY觸摸屏 2711PB10C4A9
ALLEN BRADLEY觸摸屏 2711PB10C4D8
ALLEN BRADLEY觸摸屏 2711PB10C4D9
ALLEN BRADLEY觸摸屏 2711PB12C4A8
ALLEN BRADLEY觸摸屏 2711PB12C4A9
ALLEN BRADLEY觸摸屏 2711PB12C4D8
ALLEN BRADLEY觸摸屏 2711PB12C4D9
ALLEN BRADLEY觸摸屏 2711PB15C22A9P
ALLEN BRADLEY觸摸屏 2711PB15C22A9PB
ALLEN BRADLEY觸摸屏 2711PB15C22D9P
ALLEN BRADLEY觸摸屏 2711PB15C22D9PB
ALLEN BRADLEY觸摸屏 2711PB15C4A8
ALLEN BRADLEY觸摸屏 2711PB15C4A9
ALLEN BRADLEY觸摸屏 2711PB15C4D8
ALLEN BRADLEY觸摸屏 2711PB15C4D9
ALLEN BRADLEY觸摸屏 2711PB4C20A8
ALLEN BRADLEY觸摸屏 2711PB4C20D8
BALLUFF INDUCTIVE SENSOR RPTA 1803-PU-03 *NEW IN BAG*
BALLUFF PROXIMITY SENSOR BES516-3017 BES5163017 E4-C-PU 10-30 V DC 150mA
BALLUFF PROXIMITY SENSOR BES516-3017 BES5163017 E4-C-PU 10-30 V DC 150mA
Balluff Photoelectric Emitter BLS 65K-1-G50-1
Balluff BTL5-M-2814-1S Transducer BTL5M28141S
alluff BTL5-M-2814-1S Transducer BTL5M28141S
Balluff BCSM18KM3-PSC80G-S04G Cap Active 24Vdc Proximity Switch BCSM18KM3 - USED
Balluff BCSM18KM3-PSC80G-S04G Cap Active 24Vdc Proximity Switch BCSM18KM3 - USED
BALLUFF INDUKTIVSENSOR BES 516-370-G-ES-Y-S49 OVP
BALLUFF BES 516-324-G-E4-C-PU-03, INDUCTIVE SENSOR, SENSING RANGE: 2MM, #233488
1 NIB BALLUFF BLS-18K-XX-1J-B1-L2 BLS18KXX1JB1L2 PROXIMITY SWITCH
BALLUFF P/n BES M12EG1-PSC60Z-S04G-S11
Balluff BES 5-6-3008-G-E4-C-PU-05 1.5mm N.O. Inductive Proximity Sensor
BALLUFF BESM12MD1-NSC60B-S04G PROXIMITY SENSOR *NEW IN FACTORY BAG*
BALLUFF BOS 18M-WO-7RB-BO-L PHOTOELECTRIC SENSOR 20-50VAC 45-65HZ
BALLUFF M12 2MM PROXIMITY SENSOR, RXT-1202-PU1 *NEW*
BALLUFF M12 2MM PROXIMITY SENSOR, RXT-1202-PU1 *NEW*
BALLUFF BES 516-324-G-E4-C-S49-00,2 INDUCTIVE SENSOR 10-30VDC 200MA, NEW #165298
BALLUFF 779685, BNS 542-B02-D12-72-10-FD-L2, Positionsschalter - NEU
BALLUFF BES 516 343-G-E5-C-S49 BES00TY *NEW* PROXIMITY SWITCH 10-30V DC
Balluff BES-516-209-S21-E Sensors
R900414568 4 WEH 10 D2X/6AG110NZ5L
R900358832 4 WEH 10 D2X/6AG12NETD/5
R900368745 4 WEH 10 D2X/6AG12NETD/V/5
R900358435 4 WEH 10 D2X/6AG12NETZ4
R900388912 4 WEH 10 D2X/6AG12NETZ4/5
R900354240 4 WEH 10 D2X/6AG12NETZ4/B08
R900413035 4 WEH 10 D2X/6AG12NZ4
R900352457 4 WEH 10 D2X/6AG196NETZ5/B08
R900416922 4 WEH 10 D2X/6AG220NTSZ5L
R900409160 4 WEH 10 D2X/6AG220NZ5L
R900499329 4 WEH 10 D2X/6AG24ETSZ4
R900499805 4 WEH 10 D2X/6AG24ETZ4
R900379586 4 WEH 10 D2X/6AG24ETZ4 SO 388
R900391304 4 WEH 10 D2X/6AG24ETZ5L
R900340294 4 WEH 10 D2X/6AG24EZ4
R900341743 4 WEH 10 D2X/6AG24N9ES2Z4 SO 388
R900483957 4 WEH 10 D2X/6AG24N9ETK4
R900492630 4 WEH 10 D2X/6AG24N9ETK4/B08
R900357750 4 WEH 10 D2X/6AG24N9ETK4/T06
R900407723 4 WEH 10 D2X/6AG24N9ETS2K4
R900407724 4 WEH 10 D2X/6AG24N9ETS2K4 SO 388
R900361801 4 WEH 10 D2X/6AG24N9ETS2Z4
R900345018 4 WEH 10 D2X/6AG24N9ETZ4
R900387332 4 WEH 10 D2X/6AG24N9ETZ4/11
R900385199 4 WEH 10 D2X/6AG24N9ETZ4/B08
R900337664 4 WEH 10 D2X/6AG24N9ETZ5L
具體要求如下：煤的灰分越低越好，灰分含量應與使用的焦炭灰分相同，一般要求低于15%。硫含量越低越好，硫含量應與使用的焦炭硫含量相同，一般要求低于0.8%。表明煤結焦性能的膠質層越薄越好，以免煤粉在噴吹過程中結焦，堵塞煤槍和風口，影響噴吹和高爐正常生產。生產中常用無煙煤、貧煤和長焰煙煤作為噴吹用煤。煤的可磨性好，高爐噴吹的煤需要磨細到一定細度，無煙煤-200目（粒度小于0.074mm）的要達到80%以上，煙煤-200目的要達到50%以上。
『鴻飛達自動化』
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