C52100圓棒線(xian)性(xing)(xing)(xing)(xing)裂(lie)(lie)后模型(xing)由于存在(zai)塑(su)(su)性(xing)(xing)(xing)(xing)硬(ying)化/軟化的(de)(de)，故在(zai)正常使用(yong)(yong)極(ji)(ji)限狀(zhuang)(zhuang)態(tai)（尚未發(fa)生塑(su)(su)性(xing)(xing)(xing)(xing)硬(ying)化/軟化）和承載(zai)力(li)極(ji)(ji)限狀(zhuang)(zhuang)態(tai)（塑(su)(su)性(xing)(xing)(xing)(xing)硬(ying)化/軟化中(zhong)）下(xia)，其(qi)(qi)值(zhi)分別為(wei)(wei)fFtsk和fFtuk。根(gen)據結構裂(lie)(lie)縫(feng)寬度(du)(du)的(de)(de)線(xian)性(xing)(xing)(xing)(xing)幾(ji)何關系,其(qi)(qi)承載(zai)力(li)極(ji)(ji)限狀(zhuang)(zhuang)態(tai)時(shi)的(de)(de)抗(kang)(kang)拉強(qiang)度(du)(du)值(zhi)為(wei)(wei):wu———極(ji)(ji)限裂(lie)(lie)縫(feng)寬度(du)(du)，按(an)設計的(de)(de)延性(xing)(xing)(xing)(xing)要求取(qu)(qu)值(zhi)或(huo)按(an)下(xia)式計算:wu=εFulcs式中(zhong):εFu———鋼纖(xian)維(wei)混(hun)(hun)凝(ning)土(tu)極(ji)(ji)限拉應變(bian)，取(qu)(qu)為(wei)(wei)2%；lcs———構件征長度(du)(du)，值(zhi)為(wei)(wei)min（平均裂(lie)(lie)縫(feng)間距，中(zhong)性(xing)(xing)(xing)(xing)軸到受拉側表面的(de)(de)距離）。理論上講，SFRC結構裂(lie)(lie)縫(feng)間距均小于鋼纖(xian)維(wei)長度(du)(du)，設計時(shi)為(wei)(wei)起(qi)見，lcs可(ke)取(qu)(qu)為(wei)(wei)所使用(yong)(yong)鋼纖(xian)維(wei)的(de)(de)長度(du)(du)。3）承載(zai)力(li)極(ji)(ji)限抗(kang)(kang)拉強(qiang)度(du)(du)設計值(zhi)。由于鋼纖(xian)維(wei)的(de)(de)性(xing)(xing)(xing)(xing)能參數(shu)受其(qi)(qi)空間分布(bu)的(de)(de)影響(xiang)，其(qi)(qi)離散系數(shu)普(pu)通(tong)混(hun)(hun)凝(ning)土(tu)略大，因此(ci)(ci)本(ben)課(ke)題鋼纖(xian)維(wei)混(hun)(hun)凝(ning)土(tu)材(cai)料(liao)分項系數(shu)取(qu)(qu)為(wei)(wei)1.5（高于GB50010—2010中(zhong)的(de)(de)1.4），其(qi)(qi)強(qiang)度(du)(du)設計值(zhi)按(an)下(xia)式計算:3.3SFRC抗(kang)(kang)壓(ya)強(qiang)度(du)(du)從(cong)定性(xing)(xing)(xing)(xing)角度(du)(du)分析，雖然SFRC中(zhong)鋼纖(xian)維(wei)對混(hun)(hun)凝(ning)土(tu)受壓(ya)時(shi)橫(heng)向裂(lie)(lie)縫(feng)開展有(you)延緩和作用(yong)(yong)，但(dan)由于按(an)性(xing)(xing)(xing)(xing)設計，因此(ci)(ci)塑(su)(su)后強(qiang)度(du)(du)未予考(kao)慮(lv)；同(tong)時(shi)國外研究文獻表明(ming)，鋼纖(xian)維(wei)對混(hun)(hun)凝(ning)土(tu)性(xing)(xing)(xing)(xing)階(jie)段的(de)(de)抗(kang)(kang)壓(ya)強(qiang)度(du)(du)影響(xiang)有(you)限，因此(ci)(ci)其(qi)(qi)受壓(ya)力(li)學響(xiang)應采用(yong)(yong)和普(pu)通(tong)混(hun)(hun)凝(ning)土(tu)相同(tong)的(de)(de)本(ben)構關系模型(xing)，抗(kang)(kang)壓(ya)強(qiang)度(du)(du)值(zhi)也采用(yong)(yong)同(tong)標(biao)號普(pu)通(tong)混(hun)(hun)凝(ning)土(tu)強(qiang)度(du)(du)值(zhi)。

C52100圓棒

牌號 C52100
Sn 6.0-8.0
A1 ≤0.01
Zn -
Fe ≤0.05
Pb ≤0.02
P 0.10-0.25
Cu REM
狀態 H
抗拉強度(Mpa) ≥450
伸長率(％) ≥15
性能 　優良的耐腐蝕性、耐磨性、優異的彈性及焊接性
用途 　適用于航天航空接插件、電腦配件、儀表游絲、電弧釬焊料





 
 
 
 
  
 

C52100圓棒錫(xi)磷(lin)青(qing)銅(tong)(tong)(tong)簡述磷(lin)銅(tong)(tong)(tong)是一大類，包含(han)了(le)錫(xi)磷(lin)青(qing)銅(tong)(tong)(tong)的 　　錫(xi)磷(lin)青(qing)銅(tong)(tong)(tong)有(you)(you)(you)更高的耐蝕性(xing),耐磨(mo)損,沖出時不(bu)發(fa)生火花。用于(yu)、中速、重載荷有(you)(you)(you)軸承(cheng)，作業(ye)最高溫度(du)250℃。具(ju)有(you)(you)(you)主動(dong)調心對偏斜不(bu)靈(ling)敏，軸承(cheng)受力(li)均勻(yun)承(cheng)載力(li)高，可(ke)一起(qi)受徑向(xiang)載荷，自(zi)潤滑無(wu)(wu)需保(bao)護等(deng)特性(xing)。 　　錫(xi)磷(lin)青(qing)銅(tong)(tong)(tong)是一種合(he)金銅(tong)(tong)(tong)，具(ju)有(you)(you)(you)杰(jie)出的導電(dian)功(gong)能(neng)，不(bu)易發(fa)熱(re)、確保(bao)安全一起(qi)具(ju)有(you)(you)(you)很強的抗疲勞性(xing)。 　　錫(xi)磷(lin)青(qing)銅(tong)(tong)(tong)的插(cha)孔硬連線電(dian)氣(qi)結構，無(wu)(wu)鉚釘銜接或無(wu)(wu)沖突觸(chu)點(dian)，可(ke)確保(bao)觸(chu)摸杰(jie)出，彈力(li)好，撥插(cha)平穩。 該(gai)合(he)金具(ju)有(you)(you)(you)優秀有(you)(you)(you)機械(xie)制(zhi)作功(gong)能(neng)及成屑(xie)功(gong)能(neng)，可(ke)使零件制(zhi)作進程敏捷縮(suo)短了(le)制(zhi)作時刻(ke)。