產(chǎn)品詳情
有些缺陷如脫碳、過(guò)熱等不借助金相顯微鏡也不能定量正確判定。而這類(lèi)缺陷在評(píng)價(jià)線材質(zhì)量中占重要的地位。當(dāng)碳含量在.3%以上的線材,應(yīng)嚴(yán)格控制其表面脫碳層的深度,脫碳是表面形成犬牙狀的鐵素體嵌入基體中,將嚴(yán)重影響線材的抗拉強(qiáng)度,尤其影響其疲勞強(qiáng)度。用于冷拉的線材由于內(nèi)外組織差異還會(huì)增加變形抗力。所以重要的直接用作冷拉材和高強(qiáng)螺栓、冷墩的線材都要求嚴(yán)格控制脫碳層的深度。下表是一些廠家實(shí)際控制脫碳層深度。(注:需要在實(shí)習(xí)中收集相關(guān)資料)冷拉、冷墩用線材的脫碳層要求鋼種線材直徑范圍,mm鐵素體脫碳層深度,mm全脫碳層深度,mm碳素鋼<.15<.15<.359.5~12.1<.127<.35612.7~18.6<.152<.44低合金鋼4.8<.51<.1524.8~6.4<.76<.236.4~9.5<.76<.2549.5~12.7<.12<.35>12.7<.127<.356縮孔、夾雜、分層、過(guò)燒等都是不允許存在的缺陷。
ALLEN BRADLEY 1771-NBVC SER. C F/W A UNMP
ALLEN BRADLEY 20A 8P0 A 3 AYNNNC0 SERIES A 5HP POWERFLEX DRIVE (R2)
Allen Bradley 1762l24bxbr used
Allen-Bradley 150-A24NBD One Year Warranty !
Allen-Bradley 160-BA03NSF1P1
ALLEN BRADLEY * ANALOG OUTPUT MODULE * 1771-OFE2 SER A **NEW**
ALLEN BRADLEY * ANALOG OUTPUT MODULE * 1771-OFE2 SER A **NEW**
ALLEN BRADLEY 1336-MOD-G2 REMOTE I/O INTERFACE VER 2.01 SHIPSAMEDAY
Allen bradley 1336 pcb base driver-reconditioned
Allen Bradley 40430-850-01 N.c. Contatto per Contatore Misura 3 4043085001
Allen Bradley 1772lsp repaired
ALLEN BRADLEY 1326-CCUT-L-005 SER. B UNMP
ALLEN BRADLEY 2700C-S2 SERIES B *NEW*
Allen Bradley 1764-24BWA Micrologix 1500 Base Unit Ser B Rev A 176424BWA
ALLEN BRADLEY 8000-EJ BOARD 8000EJ
Allen Bradley 900034-07-a01 Communication Module 90003407a01
Allen Bradley 900337 Pc Speicher Platte 64k Repariert
Allen Bradley Powerflex 70 20 AD 5 P 0 a 0 aynnnnn
ALLEN-BRADLEY POWERFLEX 4 22A-D2P3N104 1HP DRIVE NICE USED TAKEOUT MAKE OFFER !!
ALLEN-BRADLEY POWERFLEX 4 22A-D2P3N104 1HP DRIVE NICE USED TAKEOUT
ALLEN BRADLEY 802PR-LABJ2 SER. C UNMP
ALLEN BRADLEY 20A-C-8P7A-0-AYNNDNN POWERFLEX 70 AC DRIVE 20AC8P7A0AYNNDNN
Allen bradley 1746a10 power supply
Allen-Bradley 1772-MR One Year Warranty !
allen bradley 2098-dsd-020 servo drive ser.c 9101-2340 2098 dsd020
ALLEN BRADLEY OPERATOR PANEL 8520-FOP, PN# 176667, SER-F, REV-02, MAKE OFFER!
Allen Bradley 1333-cab Ser. C Ac-Antrieb 460 V 60hz 3ph 1333cab Repariert
allen bradley 190e-ANEJ 2-db25c-te Eco Home ser. B, 143261
Siemens 6ES7336-1HE00-0AB0
Siemens 6ES7 157-0AC83-0XA0
Siemens 6ES7131-4BD01-0AA0
Siemens 6ES7-194-4AN00-0AA0
SIEMENS 6ES5-951-7LB14 《福建鴻飛達(dá)誠(chéng)信延續(xù)超低價(jià)》
SIEMENS 6EP1336-3BA00
Siemens 6ES5521-8MA22
emens 6ES7422-7BL00-0AB0
SIEMENS 1FN1910-0AA20-3AA0
Siemens 6ES7321-1FF01-0AA0
SIEMENS 3RK1304-5KS70-2AA3
Siemens 6ES7132-4BD00-0AA0
SIEMENS 6SC6100-0NA11
Siemens 6ES5420-4UA13
Siemens 6ES7-314-6CG03-0AB0
SIEMENS 6RB2160-OFB00
SIEMENS 6ES5-373-0AA41
Siemens 6ES7135-4FB01-0AB0 《福建鴻飛達(dá)誠(chéng)信延續(xù)超低價(jià)》
SIEMENS 6ES7132-4BB01-0AB0
Siemens 6ES7195-1GA00-0XA0
SIEMENS 3RV1-021-1GA10
SIEMENS 6ES5-700-1LA12
Siemens 505-6511
WEISTINGHOUSE 1C31234G01 65
WEISTINGHOUSE 1C31161G02 60
WEISTINGHOUSE 1C31122G01 51
WEISTINGHOUSE 1C31125G02 50
WEISTINGHOUSE 1C31224G01 47
WEISTINGHOUSE 1C31116G04 43
WEISTINGHOUSE 1C31113G02 38
WEISTINGHOUSE 1C31132G01 32
WEISTINGHOUSE 1C31129G03 31
WEISTINGHOUSE 3A99158G01 18
WEISTINGHOUSE 1X00024H01 12
WEISTINGHOUSE 3A99132G02 10 11111
WEISTINGHOUSE ST24B3 10
WEISTINGHOUSE 5A26391H24 9
WEISTINGHOUSE ZX345Q 8
WEISTINGHOUSE 1C31233G04 6
WEISTINGHOUSE 3A99200G01 6
WEISTINGHOUSE 4D33942G01 5
WEISTINGHOUSE 5X00121G01 5
ALLEN BRADLEY 200-EX220Z1 / 200EX220Z1 (RQANS1)
ALLEN BRADLEY 1771-KA2 / 1771KA2 (NEW NO BOX)
ALLEN BRADLEY N28 / N28 (USED TESTED CLEANED)
ALLEN BRADLEY 32A27 / 32A27 (RQANS2)
ALLEN BRADLEY 1336T-LM2EN51 / 1336TLM2EN51 (USED TESTED CLEANED)
ALLEN BRADLEY 46-A217 / 46A217 (RQANS2)
ALLEN BRADLEY 855E-00XN3 / 855E00XN3 (USED TESTED CLEANED)
ALLEN BRADLEY 40116-437-01R / 4011643701R (NEW IN BOX)
ALLEN BRADLEY 1771-NIV / 1771NIV (Used)
ALLEN BRADLEY 1494F-P1 / 1494FP1 (USED TESTED CLEANED)
ALLEN BRADLEY 440R-G23068 / 440RG23068 (USED TESTED CLEANED)
ALLEN BRADLEY 871TM-DH5CP18-N4 / 871TMDH5CP18N4 (USED TESTED CLEANED)
ALLEN BRADLEY 72-A754 / 72A754 (RQANS2)
ALLEN BRADLEY 1326AB-MOD-G3 / 1326ABMODG3 (USED TESTED CLEANED)
ALLEN BRADLEY 100-C60DP00 / 100C60DP00 (NEW IN BOX)
ALLEN BRADLEY Z-2149 / Z2149 (RQANS2)
ALLEN BRADLEY 200-EX440Z2 / 200EX440Z2 (USED TESTED CLEANED)
ALLEN BRADLEY 42LCB-5000 / 42LCB5000 (USED TESTED CLEANED)
ALLEN BRADLEY 1786-FS100 / 1786FS100 (NEW NO BOX)
ALLEN BRADLEY 141A-WS54RR / 141AWS54RR (USED TESTED CLEANED)
ALLEN BRADLEY 100SC43ZJ22C / 100SC43ZJ22C (NEW NO BOX)
ALLEN BRADLEY 5X198 / 5X198 (NEW IN BOX)
ALLEN BRADLEY 40023-414-01 / 4002341401 (RQANS2)
ALLEN BRADLEY 1481-N26 / 1481N26 (RQANS2)
ALLEN BRADLEY 140581 / 140581 (USED TESTED CLEANED)
ALLEN BRADLEY 1490-N3 / 1490N3 (NEW NO BOX)
ALLEN BRADLEY 595-AA / 595AA (Surplus New In Box)
ALLEN BRADLEY 800H-2AHRQ / 800H2AHRQ (NEW IN BOX)
ALLEN BRADLEY 802E-B63P2-S10 / 802EB63P2S10 (RQANS1)
ALLEN BRADLEY 42GRP-9000-QD1 / 42GRP9000QD1 (USED TESTED CLEANED)
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公司名稱(chēng):福建鴻飛達(dá)自動(dòng)化科技有限公司
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