一般認(rèn)為以斷面收縮率和屈強(qiáng)比作為衡量冷鐓性能指標(biāo)比較可靠。合金鋼的斷面收縮率應(yīng)不小于50%。冷鐓鋼絲的屈強(qiáng)比小，冷鐓性能相對(duì)要好，合金鋼的屈強(qiáng)比應(yīng)不大于0.70。從冷鐓性能角度考慮，鋼絲的冷加工強(qiáng)化系數(shù)越低越好，即不易產(chǎn)生加工硬化。次標(biāo)準(zhǔn)件對(duì)原料的質(zhì)量要求：盤條具有較高的塑性指標(biāo)、斷面收縮率及延伸率；在冷塑性變形中，材料的變形抗力小，加工硬化率低，材料的屈強(qiáng)比小，盤條硬度適中，不要過高；盤條具有良好的表面質(zhì)量，一定的表面粗糙度，不允許有折疊、裂紋等表面缺陷；鋼的組織致密，無內(nèi)部缺陷。
芯科技，芯創(chuàng)新；引燃燃燒器，ZMI25G3500R，84099942
0190899102 HOSE TERMOPLASTIC.
0191015102 CONTACTOR
0191052110 VOLTMETER
0191059116 Ampere meter
0191085203 CAPACITOR
0191085206 CAPACITOR
0191321104 CLAMP PLAST. D=12 STAUFF
0191418074 SPACING SLEEVE
0191496114 WEDGE
0191561114 INSULATING WASHER
0191574114 INSULATED SLEEVE
0191812101 Cable MKFR
0191812102 Cable MKFR
0191812104 Cable MKFR以質(zhì)量打造品質(zhì)，用誠信共贏未來！》
0191812105 Cable MKFR
0191954101 RUBBER HOSE
0192058101 THERMAL COMPOUND
0192108201 SOLENOID VALVE
0192190051 PRESSURE COIL
0192200103 Hose Nipple
0192207111 Y-steel bearing UCP 214
0192230107 Blind Plug
BALLUFF BTL-5-R1-M0610-Z-MA000--S135-E4 (Surplus New not in factory packaging)
BALLUFF BIS-F-450-000-A (Used, Cleaned, Tested 2 year warranty)
BALLUFF BTL2-A11-0100-P-S-32 (Surplus New not in factory packaging)
BALLUFF BMOA66RM-X63-1 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BMOA66RM-X63-1 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BIS-C-310-05 (Surplus New not in factory packaging)
BALLUFF C49BPE00PY050M CONNECTOR *NEW IN ORIGINAL PACKAGE*
BALLUFF C49BPE00PY050M CONNECTOR *NEW IN ORIGINAL PACKAGE*
BALLUFF BNI-PNT-104-105-Z015 (Surplus New In factory packaging)
BALLUFF BNS-519-D04-L12-062-10 LIMIT SWITCH BNS519D04L1206210
BALLUFF BTL5-A11-M0305-B-SU147-S32 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BES-Q08ZE-POC20B-BV06 (Surplus New In factory packaging)
BALLUFF BNS-519-101-1-WS-067 (Used, Cleaned, Tested 2 year warranty)
FREE 2 YR WARRANTY FREE US SHIPPING ON ORDERS OVER $25
BALLUFF BNS-519-101-1-WS-067 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BNS-519-101-1-WS-088 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BNS-519-101-1-WS-066 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BNS-519-101-1-WS-066 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BLE-S5-1-FS-15 (Surplus New In factory packaging)
Balluff BES-516-325-BO-C Proximity Switch BES-516-325-B0-C - New No Box
Balluff BES-516-325-BO-C Proximity Switch BES-516-325-B0-C - New No Box
BALLUFF BES-516-207-BO-E-03 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BES-516-207-BO-E-03 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BTL5-A11-M0254-Z-S32 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BNS-519-FR-60-101 (Surplus New not in factory packaging)
BALLUFF BNS-519-FR-60-101 (Surplus New not in factory packaging)
BALLUFF BES-516-359-BO-C-03 (Surplus New not in factory packaging)
燃?xì)鈮毫﹂_關(guān)，DG40VC1-5WG/B，75454579
燃?xì)鈮毫﹂_關(guān)，DG17VC1-6W/B，75455241
燃?xì)鈮毫﹂_關(guān)，DG40VC1-6W/B，75455243
燃?xì)鈮毫﹂_關(guān)，DG110VC1-6W/B，75455245
燃?xì)鈮毫﹂_關(guān)，DG300VC1-6W/B，75455246
燃?xì)鈮毫﹂_關(guān)，DG17VC1-6WG/B，75455247
燃?xì)鈮毫﹂_關(guān)，DG40VC1-6WG/B，75455249
燃?xì)鈮毫﹂_關(guān)，DG110VC1-6WG/B，75455251
燃?xì)鈮毫﹂_關(guān)，DG300VC1-6WG/B，75455252
燃?xì)鈮毫﹂_關(guān)，DG40VC9-6W/B，75456344
燃?xì)鈮毫﹂_關(guān)，DG17VC9-6W/B，75456403
燃?xì)鈮毫﹂_關(guān)，DG60VC9-6W/B，75456404
燃?xì)鈮毫﹂_關(guān)，DG150VC9-6W/B，75456405
燃?xì)鈮毫﹂_關(guān)，DG300VC9-6W/B，75456406
燃?xì)鈮毫﹂_關(guān)，DG40VC9-6WG/B，75457583
燃?xì)鈮毫﹂_關(guān)，DG500VC1-6W/B，75457730
燃?xì)鈮毫﹂_關(guān)，DG500VC1-6WG/B，75458957
燃?xì)鈮毫﹂_關(guān)，DG17VC8D-6S32，84448004
為此.對(duì)熱模具鋼的基本使用性能要求是熱塑變抗力高，包括高溫硬度和高溫強(qiáng)度、高的熱塑變抗力，實(shí)際上反映了鋼的高回火穩(wěn)定性。由此便可以找到熱模具鋼合金化的種途徑，即加入Cr、W、Si.等合金元素可以提高鋼的回火穩(wěn)定性。模腔表層金屬產(chǎn)生熱疲勞（龜裂）。熱模的工作特點(diǎn)是具有間歇性.每次使熱態(tài)金屬成形后都要用水、油、空氣等介質(zhì)冷卻模腔的表面。因此.熱模的工作狀態(tài)是反復(fù)受熱和冷卻，從而使模腔表層金屬產(chǎn)生反復(fù)的熱脹冷縮，即反復(fù)承受拉壓應(yīng)力作用.其結(jié)果引起模腔表面出現(xiàn)龜裂，稱為熱疲勞現(xiàn)象，由此，對(duì)熱模具鋼提出了第二個(gè)基本使用性能要求.即具有高的熱疲勞抗力。切削加工后的清洗及酸洗鈍化不銹鋼工件經(jīng)切削加工后表面上通常會(huì)殘留鐵屑、鋼末及冷卻乳液等污物，會(huì)使不銹鋼表面出現(xiàn)污斑與生銹，因此應(yīng)進(jìn)行脫脂除油，再用硝酸清洗，既去除了鐵屑鋼末，又進(jìn)行了鈍化。焊接前后的清洗及酸洗鈍化由于油脂是氫的來源，在沒有清除油脂的焊縫中會(huì)形成氣孔，而低熔點(diǎn)金屬污染(如富鋅漆)焊接后會(huì)造成開裂，所以不銹鋼焊前必須將坡口及兩側(cè)2mm內(nèi)的表面清理干凈，油污可用丙酮擦洗，油漆銹跡應(yīng)先用砂布或不銹鋼絲刷清除，再用丙酮擦凈。
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