產(chǎn)品詳情
下面以復(fù)合材料平板制件在熱壓罐升溫階段為例分析,如圖1所示[2],在熱壓罐內(nèi)壓力的作用下復(fù)材構(gòu)件緊貼模具表面,升溫過程中模具與復(fù)合材料制件表面之間產(chǎn)生剪切應(yīng)力,此剪應(yīng)力表現(xiàn)為:與構(gòu)件接觸的模具表面承受壓縮應(yīng)力,而與模具接觸的構(gòu)件表面承受拉應(yīng)力。模具與構(gòu)件之間的相互作用從樹脂基體進(jìn)入粘彈性階段開始,此時復(fù)合材料的剪切模量很低,緊貼在模具表面的鋪層受到的影響較大,而遠(yuǎn)離模具表面的鋪層承受的剪切力遠(yuǎn)小于靠近模具表面的鋪層承受的剪切力,這樣,沿構(gòu)件的厚度方向就形成了一個應(yīng)力梯度,該應(yīng)力梯度隨著樹脂的固化定型而殘留在構(gòu)件中,直至構(gòu)件完成固化后,復(fù)合材料構(gòu)件脫模,殘余應(yīng)力得到釋放而使構(gòu)件變形。
ALLEN BRADLEY 193-EA2KE / 193EA2KE (USED TESTED CLEANED)
ALLEN BRADLEY B41 / B41 (USED TESTED CLEANED)
ALLEN BRADLEY B50 / B50 (USED TESTED CLEANED)
ALLEN BRADLEY B47 / B47 (USED TESTED CLEANED)
ALLEN BRADLEY 2294R-NX1-850DON / 2294RNX1850DON (RQANS1)
ALLEN BRADLEY 113497-7 / 1134977 (USED TESTED CLEANED)
ALLEN BRADLEY 1497-D-ABDX-3-N / 1497DABDX3N (RQANS2)
ALLEN BRADLEY 47SN1-4001 / 47SN14001 (USED TESTED CLEANED)
ALLEN BRADLEY 40863-012-51 / 4086301251 (USED TESTED CLEANED)
ALLEN BRADLEY 702-BOA91 / 702BOA91 (USED TESTED CLEANED)
ALLEN BRADLEY 509-BOD-A2E-90 / 509BODA2E90 (USED TESTED CLEANED)
ALLEN BRADLEY 140UE-JTF3-D20 / 140UEJTF3D20 (RQANS1)
ALLEN BRADLEY 72-A83 / 72A83 (RQANS1)
ALLEN BRADLEY 80173-108-01 / 8017310801 (USED TESTED CLEANED)
ALLEN BRADLEY 800H-FPXJM6A / 800HFPXJM6A (NEW IN BOX)
ALLEN BRADLEY 45225-2 / 452252 (USED TESTED CLEANED)
ALLEN BRADLEY 6228-616 / 6228616 (USED TESTED CLEANED)
ALLEN BRADLEY 2755-PT1 / 2755PT1 (USED TESTED CLEANED)
ALLEN BRADLEY 4011682535 / 4011682535 (USED TESTED CLEANED)
ALLEN BRADLEY E-530A-24V / E530A24V (USED TESTED CLEANED)
ALLEN BRADLEY 74102-404-02A / 7410240402A (USED TESTED CLEANED)
ALLEN BRADLEY 194E-A00-1753 / 194EA001753 (USED TESTED CLEANED)
ALLEN BRADLEY 4011682438 / 4011682438 (USED TESTED CLEANED)
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BECKHOFF KL9100
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BECKHOFF OPERATOR INTERFACE C3220TP HS6237 V2.2B
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BECKHOFF IL2301-B520
一般采用三線制,電機定子三相電流和等于零,LEM元件對c三相電流均采樣,經(jīng)檢測模塊后的轉(zhuǎn)換結(jié)果作為檢測三相電流不平衡率的依據(jù);另外,在逆變器切斷輸出后可通過LEM元件對c三相電流流動情況進(jìn)行檢測,以判斷功率模塊是否可靠關(guān)斷,消除安全隱患。在應(yīng)用中,JCE傳感器體現(xiàn)其極多特點:過載能力強:當(dāng)原邊電流超載時,可以自動保護(hù),即使過載電流為額定值的二十倍時傳感器也不會損壞;原邊與副邊之間的電容量是很弱的,在很多應(yīng)用*模電壓的各種影響可忽略;靈敏度高:能區(qū)分在高分量上的弱小信號,如在幾百安培的直流上能區(qū)分幾毫安的交流分量;可靠性高:失效率=.431-6/h;抗外磁場能力強:經(jīng)實驗在距離傳感器5~25px處的一個兩倍工作電流所產(chǎn)生的磁場干擾而引起自身的誤差.5%。
Ovation 2840A18G03
Ovation 2840A18G04
Ovation 2840A19G06
Ovation 2840A19G07
Ovation 2840A20G01
Ovation 2840A20G02
Ovation 2840A20G03
Ovation 2840A21G01
Ovation 2840A21G02
Ovation 2840A21G04
Ovation 2840A21G05
Ovation 2840A38G01
Ovation 2840A49G01
Ovation 2840A77G02
Ovation 2840A78G01
Ovation 2840A79G01
Ovation 2840A80G04
Ovation 2840A80G06
Ovation 2840A80G07
Ovation 2840A80G08
Ovation 2D34347G06
Ovation 2D34347G08
BALLUFF BES 12,0-KH-2S/W PROXIMITY SENSOR MOUNT, NEW #159372
BALLUFF BES 12,0-KH-2S/W PROXIMITY SENSOR MOUNT, NEW #159372
Balluff BDS 21MR05-NT-PU-03-SA2 Induktiver Sensor - ungebraucht! -
Balluff BDS 21MR08-NT-PU-03-SA2 Induktiver Sensor - ungebraucht! -
Balluff BDS 21MR05-NT-PU-03-SA2 Induktiver Sensor - ungebraucht! -
Balluff B0S 18M-PA-1QB Photoelectric Sensor
Balluff B0S 18M-PA-1QB Photoelectric Sensor
BALLUFF IDENTIFIKATIONS- SYSTEM BIS C-600-007 inkl Vers
BALLUFF BES007Y, BES M18MI-POC80B-S04K3, Inductive sensor - NEW
BALLUFF BES007Y, BES M18MI-POC80B-S04K3, Inductive sensor - NEW
Balluff Proximity Switch BES 516-324-G-E5-D-S4 Used #62869
Balluff - BES Q40KFU-PSC35Z-S04G-011 Inductive Proximity sensor
Balluff BKS-S 10-4 Steckverbinder
Balluff BNS 813-FR-60-185 Limit Switch - Unused In Box
BALLUFF BGL0039 BGL 50C-003-S4 50mm Gabellichtschranke Lichtschranke -used-
Balluff C04ANL7 Female micro Straight field connector
Balluff Identification-System BIS C-300-PU1-05 Schreib- und Lesekopf Neu OVP
Balluff Induktiver Sensor BES MO8EE-PSC20B-S04G
BALLUFF PROXIMITY SENSOR BAW-M18MI-UAC50B-S04G BAWM18MIUAC50BS04G
BALLUFF BNS-819-D08-R16-100-10 LIMIT SWITCH NEW 160066
Balluff Netzteil BES 516-706-B-3 (115/230VAC - 24VDC) (D.267)
BALLUFF BLE 18M-BS-1LT-S4-C / BLE18MBS1LTS4C, photoelectric sensor
Balluff Proximity Switch BES 516-324-E4-C-S4-003 Used #58496
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公司名稱:福建鴻飛達(dá)自動化科技有限公司
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