The rationality and economy of reformation for PU foaming machinery using cyclopentane as foaming agent were introduced.

闡述了采用環(huán)戊烷替代CFC-11發(fā)泡劑的聚氨酯發(fā)泡機(jī)改造的合理性和經(jīng)濟(jì)性jizzjizz20。

Experiment results indicated that the foaming flowability of polymeric MDI was almost independent of 2,4'-MDI content in both CFC and cyclopentane foaming systems, but increase in 2,4'-MDI content resulted in linear rise of demoulding deform...

實(shí)驗(yàn)結(jié)果表明在线亚洲中文一区，當(dāng)聚合MDI與 2種組合聚醚進(jìn)行發(fā)泡時(shí)色综合综合，2 ，4' MDI含量對(duì)聚合MDI的發(fā)泡流動(dòng)性影響較小最新购买91，而對(duì)后熟化性能的影響明顯，隨 2 向日葵视频在线下载官方下载，4' MDI含量的增加白白在线发布，脫模變形呈直線上升的趨勢(shì)。

The Ni-based extensive hydrogenation catalyst and the process developed by us were applied to the industrial equipment with an annual production capacity of 20 thousand tons of foaming agents in the Meilong Cyclopentane Co., Ltd of Jilin Chemical Industry Co., Ltd. In 2002, the feed and trial was successful with one attempt and produced high-quality cyclopentane foaming agents.

我們開發(fā)的 Ni 系深度加氫催化劑及其工藝在吉林化學(xué)工業(yè)公司美龍環(huán)戊烷公司年產(chǎn)2萬噸發(fā)泡劑工業(yè)裝置上應(yīng)用女人一边做一边潮喷30p，于2002年一次投料試車成功国产视频黄，生產(chǎn)出高質(zhì)量的環(huán)戊烷發(fā)泡劑。

Basing on thermo-simulation in laboratory, experimental study was accomplished to analyze the function mechanism of foaming agent and the foaming influence of its decompound production. The results indicated: function of foaming agents was due to their decompound and inter-reaction at high temperature. And some decompound production of foaming agent can reinforce the foaming ability of refining slag.

采用實(shí)驗(yàn)室模擬的方法在线观看免费A片视频，針對(duì)鋼包精煉爐常用發(fā)泡劑的作用機(jī)理以及發(fā)泡劑高溫分解產(chǎn)物對(duì)熔渣泡沫化性能的影響進(jìn)行了研究在线视频激情，結(jié)果表明：發(fā)泡劑的作用主要來源于其組成物質(zhì)的高溫分解以及相互反應(yīng)；發(fā)泡劑分解后部分產(chǎn)物作為高熔點(diǎn)粒子存在于熔渣中蜜桃视频未满在线观看免费，提高了精煉渣的泡沫化性能久久小视频。

The influence of high temperature and high pressure on foaming agent's properties in opened and closed system, and influence of the change of foaming agent's properties on foaming capacity and foam stabilizing capacity are also studied. The multiple regression theory is used to establish the quantitative characteristic functions of foaming agent versus temperature and pressure. Based on the Gibbs Principle, the quantitative characterization is carried out on relation of foam system's free energy versus its surface tension, surface area and concentration, and the analysis of energy concluded that the disintegration of the foam is inconvertible. At the same time, the influence of change of foam's shape and structure on distribution of reservoir temperature and pressure is qualitatively described, and the coupling mechanism between temperature field, pressure field and chemical field is systematically expounded.

同時(shí)日韩精品成人网页在线观看视频，研究了不封閉體系、封閉體系下高溫A片一级毛片、高壓對(duì)發(fā)泡劑性質(zhì)的影響欧美特级视频，以及發(fā)泡劑性質(zhì)的改變對(duì)其發(fā)泡性能、穩(wěn)泡性能的影響一级a片麻豆；采用泡沫實(shí)驗(yàn)的相關(guān)結(jié)果国产一级a黄在线播放，運(yùn)用多元回歸理論，建立溫度无码中文字幕A片在线、壓力與發(fā)泡劑濃度的定量表征函數(shù)亚洲人妻中文；基于Gibbs原理，對(duì)高溫老夫妻性交免费视频、高壓下泡沫體系的自由能與其表面張力xxwww日韩在线观看视频、體系中液體的表面積以及濃度關(guān)系進(jìn)行定量化的表征研究，從能量的角度得出了泡沫衰變過程具有不可逆性ΑV天堂在线观看免费；同時(shí)定性地描述了泡沫形態(tài)成年人网站免费视频在线观看、結(jié)構(gòu)的變化對(duì)油藏溫度和壓力分布的影響，系統(tǒng)地闡述了溫度場(chǎng)www.日本在线播放、壓力場(chǎng)日日摸夜夜爽毛片免费视频、化學(xué)場(chǎng)間的耦合作用機(jī)理。

The present invention adopts polyvinyl perchloride and organosilicon modified acrylic resin as main filming material and adds cyanuramide phosphate and expanding graphite into common polytriammonium phasphate as fireproof assistant to constitute foaming material. The present invention has greatly raised foaming rate and the foamed layer has thickness of 30-50 times the original coating thickness and fireproof limit up to 90 min.

本發(fā)明采用高氯化聚乙烯和自行合成的有機(jī)硅改性丙烯酸酯樹脂為主要成膜物質(zhì)国产无码网站，并在通常所用的聚磷酸銨類防火助劑的基礎(chǔ)上国产亚洲精品AA片在线，加入三聚氰胺磷酸鹽和可發(fā)性膨脹石墨作為發(fā)泡材料組成，大大提高了涂層的發(fā)泡率一级毛片免费毛片，發(fā)泡層厚度可達(dá)原涂層厚的30～50倍99ritv，耐火極限可達(dá)90min(涂層厚度2mm)。

This solvent has good regeneration property, low foaming tendency in the sweetening process and anti-foaming ability.

該脫硫溶劑的再生性能良好亚洲免费播放黄色网，在脫硫過程中發(fā)泡傾向低亚洲精品永久无码在线主页，具有較強(qiáng)的抗發(fā)泡能力。

It was found that increasing pressure for blank can improve the compactedness of blanks so as to make foam aluminium materials with homogeneous pores. Foaming temperature, as one of the main influencing factors on foaming process, should be controlled higher than the melting point of Al or Alalloy to a certain extant in order to keep a reasonable viscosity. Thus, the foam aluminum with homogeneous pores and high porosity is available. As shown by experiments, such materials should be made on conditions that they shall be protected with molten salt under 300?MPa pressure at 675～680?℃.

研究了粉末冶金法制備泡沫鋁材料的方法討論了發(fā)泡過程中的保護(hù)方式国产情侣一区二区、制坯壓力免费看黄刺激视频网站、發(fā)泡溫度等參數(shù)對(duì)泡沫鋁體積質(zhì)量、孔隙率臀蜜91精品国产免费观看、孔結(jié)構(gòu)的影響精品视频在线观看免费，并對(duì)發(fā)泡機(jī)理進(jìn)行了探討增大制坯壓力使得金屬坯致密，可以得到孔結(jié)構(gòu)均勻的泡沫鋁材料在线观看免费的AV网址；發(fā)泡溫度是影響發(fā)泡的主要因素之一精品久久久久久久久免费午夜福利，發(fā)泡溫度控制在高于鋁或鋁合金熔點(diǎn)，同時(shí)保持熔體具有一定粘度的范圍內(nèi)538视频在线播放，能夠得到孔結(jié)構(gòu)均勻色窝窝视频在线视频精品、高孔隙率的泡沫鋁材料實(shí)驗(yàn)結(jié)果表明：采用熔鹽保護(hù)方式久久久久久丰满孕妇A片，在300MPa的壓力下，溫度在675～680℃時(shí)亚洲欧洲一区，可得到孔徑均勻国产黄片视频在线播放、孔隙率高的泡沫鋁材料。

The cell structure refining mechanism shows that adding Mg decreases the surface tension of the aluminum alloy melt and hence to increase the bubble stabilization. Adding nuclear forming agent increases the nuclei of heterogeneous nucleation. Adding pre-heating foaming agent postpones its decomposition, hence to increase the uniform of foaming agent dispersion. Stirring within the middle stage of foaming agent rapid decomposition breaks up big bobbles to fine bobbles, hence to reduce mean cell diameter.

孔徑細(xì)化機(jī)理分析表明一个人免费色哟哟在线视频观看，Mg的作用在于降低鋁熔體的表面張力91精品在线观，提高氣泡穩(wěn)定性；形核劑的作用在于增加氣泡非均勻形核的核心60后老熟妇乱子伦视频；發(fā)泡劑氧化預(yù)處理可以推遲和延緩發(fā)泡劑的分解特级一级黄片，提高發(fā)泡劑的分散均勻性；攪拌發(fā)泡的作用是在發(fā)泡劑劇烈分解的中段久久精品免费少妇高潮特黄，通過攪拌攪碎氣泡精品无码一级毛片，減小平均孔徑。

The different foaming performance of sodium laureth sulfate, cocamidopropyl betaine and their compounds under different active concentrations, water hardnesses and temperatures were investigated. The results show that the foaming performance of SLES doesn't change under different water hardness, but that of CAB changes with different concentration, and the compounds of SLES and CAB have much better foaming performance and synergetic effect under different conditions.

通過實(shí)驗(yàn)主要考察了在不同活性物濃度奥美黑人一级黄色A片，不同水硬度條件和不同體系溫度下三级片91，SLES、CAB和它們的復(fù)合物的泡沫性能中文字幕亚洲一区二区三区，結(jié)果表明国产中文亚洲日韩欧美，SLES的泡沫性能受硬水影響不大，CAB的泡沫性能隨濃度的變化而有所不同嗯啊啊网站，SLES和CAB的復(fù)合物有更優(yōu)秀的泡沫性能在线视频黄片免费观看，表現(xiàn)出良好的協(xié)同增效性。