FEM simulation of the optimization of the die angle with the floating plug drawing process of copper tubes;

銅管游動(dòng)芯頭拉拔模具角度優(yōu)化的有限元模擬

Research on the Influence of Sewage on Copper Tube Corrosion When Reclaiming Heat Energy From Sewage;

回收污水熱能時(shí)污水對(duì)銅管腐蝕的影響研究

Development of a Special Polish-grinding Machine for Outside Surface of a Crystallizer Copper Tube on Conticaster;

連鑄機(jī)結(jié)晶器銅管外表面拋磨專機(jī)研制

Firstly, In the experiment of this article, PE-RT, PE-X, PP-R and Cu pipe are used as heating pipes.

首先,以耐高溫聚乙烯(PE-RT)、交聯(lián)聚乙烯(PE-X)、無規(guī)共聚聚丙烯(PP-R)和銅管四種不同熱阻的典型管材作為加熱管,分別對(duì)其進(jìn)行地板輻射供暖傳熱實(shí)驗(yàn),由實(shí)驗(yàn)得出幾種不同加熱管管材下,地板單位面積散熱量與供回水平均溫度的關(guān)系公式,并對(duì)幾種管材的散熱量進(jìn)行了比較,從傳熱學(xué)的角度對(duì)這種差別進(jìn)行了解釋和深入分析;課題還進(jìn)行了流速對(duì)地面散熱量的影響實(shí)驗(yàn),并利用邊界層理論對(duì)該影響進(jìn)行了理論分析;實(shí)驗(yàn)通過更換地面層,進(jìn)行了地面層對(duì)散熱量和向下熱損失影響的實(shí)驗(yàn),得到水泥、瓷磚和木質(zhì)地板三種面層下,地板散熱量的大小比例關(guān)系和三種面層下地板向下的熱損失。

Influence of fulvic acid on soluble copper release in soft water from copper pipe/phosphate system.;

軟水中富里酸對(duì)銅管/磷酸鹽體系溶解性銅釋放影響

Modeling decay of chloramines residuals by copper pipe distribution test loop system;

銅管模擬輸配系統(tǒng)中氯胺衰減過程與模擬

Rational design of copper pipe in building water supply;

銅管在建筑給水中的合理設(shè)計(jì)

Protective measures of copper tubes of the steam condenser in steam power plants;

火力發(fā)電廠凝汽器銅管保護(hù)

To simulate ammonia corrosion process of copper tubes in the air removal section of condenser in power plant,immersion tests of copper tube samples are conducted in ammonia solutions with ammonia 50～20000 mg/L,at temperatures 25℃、35℃ and 45℃ respectively.

在 16種濃度的氨溶液 (從 5 0mg/L～ 2 0 0 0 0mg/L不等 )、3種溫度 (2 5℃、35℃、4 5℃ )、3種溶解氧的條件下(開口、密閉不除氧、密閉除氧 ) ,對(duì)銅管腐蝕過程及影響氨腐蝕過程的因素及規(guī)律進(jìn)行了研究 。

By studying on the lubricity,adhesion,anti-heating and removing properties of the studied lubricants,a new high-speed cold drawing and heavy viscosity oil for copper tubes was developed,which avoids to produce harmful oil-smog,prevents copper tubes from being spoiled and ensures copper tubes have excellent surface quality.

通過對(duì)油品的潤滑性、粘附性、耐高溫性、清洗性等進(jìn)行詳細(xì)的研究,開發(fā)出一種新型的高粘度銅管高速拉拔外模專用油,不僅解決了銅管生產(chǎn)過程中油煙對(duì)工作環(huán)境污染和對(duì)人體的傷害,而且避免了銅管表面的擦傷,保證了銅管良好的表面質(zhì)量。