產(chǎn)品詳情
同一種金屬采用不同的熱處理工藝,可獲得不同的組織,從而具有不同的性能。鋼鐵是工業(yè)上應(yīng)用廣的金屬,而且鋼鐵顯微組織也為復(fù)雜,因此鋼鐵熱處理工藝種類繁多。整體熱處理是對(duì)工件整體加熱,然后以適當(dāng)?shù)乃俣壤鋮s,以改變其整體力學(xué)性能的金屬熱處理工藝。鋼鐵整體熱處理大致有退火、正火、淬火和回火四種基本工藝。退火是將工件加熱到適當(dāng)溫度,根據(jù)材料和工件尺寸采用不同的保溫時(shí)間,然后進(jìn)行緩慢冷卻,目的是使金屬內(nèi)部組織達(dá)到或接衡狀態(tài),獲得良好的工藝性能和使用性能,或者為進(jìn)一步淬火作組織準(zhǔn)備。
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一樣的產(chǎn)品,不一樣的是價(jià)格與服務(wù)。
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XR2BB04K40 OsiSense XC交易-頭寸選擇器
XR2BB07K10 位置選擇器
XR2BB08K80 位置選擇器
XRBA411002525 OsiSense XC交易-位置選擇器4個(gè)觸點(diǎn)
XRBA412002525 OsiSense XC交易-位置選擇器4個(gè)觸點(diǎn)
XRBA412002852 4觸點(diǎn)位置選擇器,減少
XRBA417467 OsiSense XC交易-24413-58 FDC Potain
XRBA421002222 OsiSense XC交易-選擇器位置4連續(xù)動(dòng)作,減少
XRBA421132288 4觸點(diǎn)位置選擇器,減少
XRBA422002552 4觸點(diǎn)位置選擇器,減少
XRBA431002222 4觸點(diǎn)位置選擇器,減少
XRBA432002552 “ OsiSense XC交易-頭寸選擇器”
XRBA441235585 4 C觸點(diǎn)位置選擇器
XRBA451002222 4觸點(diǎn)位置選擇器,減少
后端調(diào)整流量,前端流量又會(huì)變化。因此調(diào)節(jié)費(fèi)時(shí)費(fèi)力;對(duì)于復(fù)雜系統(tǒng),要求調(diào)節(jié)閥門的工程師經(jīng)驗(yàn)豐富。并且一旦系統(tǒng)壓力或負(fù)荷發(fā)生變化仍需要重新調(diào)整水力系統(tǒng)。安裝動(dòng)態(tài)流量平衡閥熱力入口或空調(diào)設(shè)備末端的設(shè)計(jì)流量確定后,根據(jù)流量及閥門處的壓力變化范圍選定動(dòng)態(tài)平衡閥,安上設(shè)置好的閥門既可使用。只要閥門處的壓差變化在閥門的設(shè)計(jì)壓力范圍內(nèi),無需任何人為的調(diào)節(jié)。動(dòng)態(tài)平衡閥的特點(diǎn)動(dòng)態(tài)平衡閥的工作原理:通過改變平衡閥的閥芯的過流面積來適應(yīng)閥門前后的變化,從而達(dá)到控制流量的目的。
ALLEN BRADLEY 194R-R7 / 194RR7 (NEW IN BOX)
ALLEN BRADLEY 602122-00 / 60212200 (USED TESTED CLEANED)
ALLEN BRADLEY 1784-AGT / 1784AGT (Used)
ALLEN BRADLEY 2755-C15D1 / 2755C15D1 (USED TESTED CLEANED)
ALLEN BRADLEY 592-B1CA / 592B1CA (RQANS1)
ALLEN BRADLEY 2090-UXBC-D1503 / 2090UXBCD1503 (USED TESTED CLEANED)
ALLEN BRADLEY Z-27667 / Z27667 (RQANS1)
ALLEN BRADLEY 71-A288 / 71A288 (NEW IN BOX)
ALLEN BRADLEY 1414-CNZ10ZXPBP / 1414CNZ10ZXPBP (USED TESTED CLEANED)
ALLEN BRADLEY 202AC-NX9 / 202ACNX9 (USED TESTED CLEANED)
ALLEN BRADLEY RC32GF201J / RC32GF201J (NEW IN BOX)
ALLEN BRADLEY 849DC-Z0H321 / 849DCZ0H321 (NEW NO BOX)
ALLEN BRADLEY 1756-TBS / 1756TBS (USED TESTED CLEANED)
ALLEN BRADLEY 1203-GK1 / 1203GK1 (NEW NO BOX)
ALLEN BRADLEY 845T-DZ31BCJ-C / 845TDZ31BCJC (NEW NO BOX)
ALLEN BRADLEY 40116-824-11 / 4011682411 (RQANS2)
ALLEN BRADLEY 705-TAD / 705TAD (USED TESTED CLEANED)
ALLEN BRADLEY PD735 / PD735 (USED TESTED CLEANED)
ALLEN BRADLEY 47A218 / 47A218 (RQANS1)
ALLEN BRADLEY 802T-L2 / 802TL2 (USED TESTED CLEANED)
ALLEN BRADLEY 74102-588-51 / 7410258851 (USED TESTED CLEANED)
ALLEN BRADLEY 45FSL-2LWE-A2 / 45FSL2LWEA2 (USED TESTED CLEANED)
ALLEN BRADLEY 193-EXEO1CF / 193EXEO1CF (RQANS1)
ALLEN BRADLEY 400-DP90NB3 / 400DP90NB3 (USED TESTED CLEANED)
ALLEN BRADLEY 2755-HFC-SP2-01 / 2755HFCSP201 (RQANS2)
ALLEN BRADLEY 190-P060R / 190P060R (RQANS1)
ALLEN BRADLEY 806-B21 / 806B21 (USED TESTED CLEANED)
ALLEN BRADLEY 871C-P2A12 / 871CP2A12 (USED TESTED CLEANED)
ALLEN BRADLEY 810-NX45 / 810NX45 (NEW NO BOX)
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A970GOT-TBD
A970GOT-TBD-B
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A975GOT-TBA
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A975GOT-TBD
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A985GOT-TBD-V
A9GT-50KBF
A9GT-50LT
A9GT-50PRF
A9GT-50PSC
SENS ENDRESS HAUSER FTL50H-ATC2AD2G6C LIQUIPHANT M
ENDRESS + HAUSER PROMASS 83 83M50-AW0WAAAAA2AH
ENDRESS+HAUSER COS4 Sensor for Dissolved Oxygen
ENDRESS+HAUSER CYA611-1A PVC Immersion
ENDRESS & HAUSER 50P4H-EL0A1RA0BAAA (Used, Cleaned, Tested 2 year warranty)
NEW ENDRESS & HAUSER FTL50-ATE2AA4E4A LIQUIPHANT M LEVEL SENSOR
ENDRESS HAUSER FTL50H-AYY9AC4F6A LIQUIPHANT M "NEW"
ENDRESS + HAUSER PROMAG 53 53P32-EF5B3AC4A3CD
NEW ENDRESS & HAUSER FTL50-AGN2AA1E4A LIQUIPHANT M LEVEL SENSOR
NEW ENDRESS & HAUSER 52008741 LIMIT SENSOR
Endress Hauser 83F15-BAACAD3EBAAW/PROMASS83
Endress + Hauser du 42 C Ultrasonic Sensor
ENDRESS & HAUSER 80E15-AAASAAAABAA8 PROMASS 80 FLOW METER 85-260VAC 50-60HZ
Endress & Hauser 20" PROMAG W Flowmeter
NEW ENDRESS + HAUSER FTL51H-RTE2CC4E5A LIQUIPHANT M TRANSMITTER 71087171
ENDRESS+HAUSER 50W80-UL0A1AC5BBAA PROMAG W ELECTROMAGNETIC FLOWMETER &
ENDRESS+HAUSER 53W80-UL0A1AC5BBBA PROMAG W ELECTROMAGNETIC FLOWMETER &
Endress + Hauser solicap ftc52-ag1ac12eb 52010290 NFP
ENDRESS + HAUSER SMARTEC SMARTEC-C CLD130-PMV11A00 CLD130PMV11A00 ! NEW !
Endress Hauser 3" 10W80-PL0A1RA0B4AA Electromagnetic Flowmeter
Endress + Hauser Memo-Graph S rsg12 BA 18 dbaaab 230v Memo Graph
ENDRESS HAUSER 1/12" STAINLESS FLOWMETER 80A02-CSPDAAAABBAA DN02
Endress + Hauser Prosonic M FMU41-ANB3A4 Ultrasonic Level Transmitter
Endress Hauser 80A02-ASVWAAAABABA Promass 80 Coriolis mass Flow Meter
ENDRESS + HAUSER PROMAG P 53P50-EL1B1RA0BAAA ELECTROMAGNETIC FLOWMETER *NEW
NEW ENDRESS+HAUSER CLEANING UNIT FOR NITRATE SENSOR CNS70/CSS70 E+H NIB
它是針鐵礦(Goethite)HFeO2和鱗鐵礦(Lepidocrocite)FeO(OH)兩種不同結(jié)構(gòu)礦石的統(tǒng)稱,也有人把它主要成份的化學(xué)式寫成mFe2O3nH2O,呈現(xiàn)土黃或棕色,含有Fe約62%,O27%,H2O11%,比重約為3.6~4.,多半是附存在其它鐵礦石之中。菱鐵礦(Siderite)是含有碳酸鐵的礦石,主要成份為FeCO3,呈現(xiàn)青灰色,比重在3.8左右。這種礦石多半含有相當(dāng)多數(shù)量的鈣鹽和鎂鹽。
聯(lián)系人:小葉
公司名稱:福建鴻飛達(dá)自動(dòng)化科技有限公司
公司地址:福州市閩侯高新區(qū)正榮財(cái)富中心(SOHOB座8層)
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