浅谈建筑节能中外墙保温技术的应用

在建筑中,外墙结构是与外界直接接触并且受外界影响最大的结构,它的能量的损耗也是最明显的,因而在建筑节能中外墙保温技术是建筑节能技术的一个非常重要的环节。在一些城市中,已经要求必须采用外墙保温技术,外墙保温技术已经广泛的运用在建筑节能中,成为广泛运用的一种建筑保温节能技术。本文主要阐述了建筑节能中外墙保温技术的应用。     

建筑外墙外保温技术的优越性与施工方法

近年来,建筑行业逐渐成为我国经济发展的支柱性产业,建筑的保温性能也受到了社会公众群体的广泛关注。建筑保温性能的提高,对建筑节能领域的发展有着重要意义。建筑实现全面节能,对实现我国可持续发展战略目标的达成起到了积极的促进作用,而建筑外墙保温作为建筑节能体系中最重要的施工环节,其施工质量需要得到落实。本文主要通过分析建筑外墙外保温技术的优越性与施工方法,希望能对建筑节能设计施工人员起到借鉴与参考作用,逐步推动我国建筑节能领域的发展。     

关于建筑工程外墙外保温施工技术探析

建筑墙体节能技术和屋面保温技术的发展是建筑节能技术的一个最重要的环节,发展外墙保温技术及节能材料则是建筑节能的主要实现方式。本文介绍了建筑工程外墙内保温的现状,分析了外墙内保温的材料,论述了外墙外保温系统工程质量的控制技术。     

建筑外墙外保温技术与建筑节能研究

建筑节能是环境保护和能源节约的双重要求,是实现可持续发展的重要措施。近年来在节能技术创新以及相关政策法规的推动下,我国的建筑节能标准不断提高,尤其是建筑外墙保温技术的迅速发展,使得建筑节能在该领域的研究愈加深入。建筑外墙热损耗较大,而且墙体面积大,因此加强外墙外保温技术的研究对于技节能减耗具有重要的地位。本文主要分析了建筑外墙外保温技术的特点以及建筑节能的意义。     

浅析住宅小区外墙保温施工技术

随着住宅小区的持续建设和发展,建筑小区对于能源节约以及环境保护提出了更高的要求,建筑外墙保温技术也得以持续发展,并成为了一项重要的建筑节能技术。随着节能意识的持续深入以及环境保护意识的持续提高,建筑外墙的保温技术进一步发展和完善。通过对住宅小区建筑外墙保温技术进行分析探讨,探讨了住宅小区外墙保温施工以及控制要点。     

谈谈新型墙体节能保温材料

建筑节能保温工程中的新材料、新技术、新工艺,给建筑施工技术创新带来了深刻的影响。而伴随对节约能源与保护环境的要求不断提高,建筑围护结构的保温技术也在日益加强,尤其是外墙保温技术得到长足发展,并成为我国一项重要的建筑节能技术。     

外墙保温技术及环保材料的革新

随着对节约能源与保护环境的要求的不断提高,建筑维护结构的保温技术也在日益加强,尤其是外墙保温技术得到了长足的发展,并成为我国一项重要的建筑节能技术。目前,在建筑中常使用的外墙保温主要有内保温、外保温等方法,针对新技术的发展,要加强新型节能材料的开发和利用,从而使建筑节能真正得以实施。     

关注建筑外墙保温防火安全技术

<正>"节能减排"是我国的基本国策,建筑作为能源消耗大户,开展节能保温意义重大。在建筑节能政策、法规的推动下,我国的外墙保温技术表现出蓬勃发展的趋势。但央视大楼大火、中国科技馆火灾,以及上海"11.15"火灾的发生引起了社会各界对外保温行业的广泛关注。建筑节能与消防安全之间的矛盾突显出来,给外     

对建筑外墙保温技术与节能材料的应用问题探讨

随着我国经济的飞速发展,基础能源日益紧张,推广建筑节能已成为我国节约能源政策的长期国策。而建筑外墙保温技术及节能材料的发展又是推进我国建筑节能的关键。     

初探建筑保温材料的选择及未来发展趋势

外墙保温材料是建筑外墙的防火保温外衣,具有隔热防火保温的效果。随着近年来建筑节能技术的发展,推动了新型外墙保温材料的研究,本文分析了建筑保温材料选用的依据,探讨了新型外墙保温材料的发展趋势。并以水泥发泡板为例介绍新型建筑保温材料的优势。     

Insertion of triangulated surfaces into a meccano tetrahedral discretization by means of mesh refinement and optimization procedures

In this paper, we present a new method for inserting several triangulated surfaces into an existing tetrahedral mesh generated by the meccano method. The result is a conformal mesh where each inserted surface is approximated by a set of faces of the final tetrahedral mesh. First, the tetrahedral mesh is refined around the inserted surfaces to capture their geometric features. Second, each immersed surface is approximated by a set of faces from the tetrahedral mesh. Third, following a novel approach, the nodes of the approximated surfaces are mapped to the corresponding immersed surface. Fourth, we untangle and smooth the mesh by optimizing a regularized shape distortion measure for tetrahedral elements in which we move all the nodes of the mesh, restricting the movement of the edge and surface nodes along the corresponding entity they belong to. The refining process allows approximating the immersed surface for any initial meccano tetrahedral mesh. Moreover, the proposed projection method avoids computational expensive geometric projections. Finally, the applied simultaneous untangling and smoothing process delivers a high‐quality mesh and ensures that the immersed surfaces are interpolated. Several examples are presented to assess the properties of the proposed method.     

Certification Institutions Expected to Update and Transfer Information on Present Standards

Standards are the basis for production enterprises to organize production, ex-factory inspection, trade (delivery) and technical exchanges, product certification, quality arbitration and supervision.……     

From Industry 4.0 to Research 4.0. Development of High Performance Fibers in the Light of Digitization

We associate a variety of innovations with the term ＂Industry 4.0＂. The pioneer of many 4.0 modifications forms the basisfor the trend towards the integrated di...     

Flow calorimeter for enthalpy increment measurements on condensed gases

A flow calorimeter for enthalpy increment measurements on condensed gases is presented. A better knowledge of the properties of the liquefied natural gas is needed, and therefore a liquid loop has been designed for our flow calorimeter. The fluid loop in the calorimeter is designed in order to avoid the two-phase region, since two phases would give compositional disturbances in the measurements. The avoidance of the two-phase region is made possible by increasing the pressure of the test fluid after the measurement section, then heating the fluid at super-critical pressure past the critical point. Finally, the fluid is throttled to the low-pressure gas state at the inlet condition of the compressor that circulates the fluid. To perform the pressure increase, a new cryogenic pump has been designed. To evaluate the new equipment, measurements were taken on liquid ethane over the temperature range 146–256 K at pressure between 0.9 and 5.1 MPa.     

Refrigerators Enter a New Era of Health Preservation Frestech initiates the establishment of China's first standard for household sterilization refrigerators

On November 30, 2007, the China Association for Standardization (CAS) held a press conference at Beijing Diaoyutai State Guest House. Leaders from the China Household Electric Appliance Research Institute, the China Household Electric Appliance Association, and the China Consumers' Association attended and made speeches.……     

Roman iron and steel: A review

ABSTRACT

The production of ferrous metal increased during the Roman Late Republican period, Principate and Empire. The direct bloomery process was used to extract the metal from its ores using slag-tapping and slag-pit furnaces. The fuel was charcoal and an air blast was introduced by bellows-operated tuyères. Iron formed as a bloom, often as a spongy mass of metal, which contained impurities from the smelting process, including unreacted ore, fuel, slag and fragments from the furnace walls, while the metal was often inhomogeneous with varied carbon contents. Blooms were either smithed directly into bars or ingots or they were broken up, which also allowed the removal of gross impurities and a selection of pieces with similar properties to be made. These could then be forge-welded together and formed into characteristically shaped ingots. Making steel in the furnace seems to have been achieved: it depended on the ore and the furnace and conditions within it. Surface carburization was also carried out. Iron and steel were used extensively in construction and for tools and weapons. Fire welding was often used to add pieces of steel to make the edges of tools and weapons, which could be heat-treated by quenching to harden them.     

Optimum-Simulation von Ernteprozessen

Zusammenfassung Bei der Gestaltung von Ernteprozessen — beispielsweise des Prozesses Mähdrusch, Körnertransport und -abnahme — als transportverbundene Fließarbeitsverfahren mit mindestens zwei verschiedenen Arbeitsmitteln gibt es einen großen Optimierungsspielraum. Solche Prozesse sind mehrstufige Bedienungsprozesse mit gemischter Anordnung der Bedienungseinrichtungen. Außerdem besitzen sie stark ausgeprägte räumliche Aspekte. Es wird vor allem gezeigt, welche Merkmale solcher Prozesse in Simulationsmodellen abgebildet sein müssen, welche Zielgrößen in Abhängigkeit von welchen Einflußgrößen unter Berücksichtigung welcher Prozeßbedingungen ermittelt werden sollten und wie der Bewertungsprozeß zur Ermittlung der gewünschten Informationen gestaltet werden muß.     

A study of centrifugal cast high boron high speed steel

In the present study a high‐boron high speed steel (HSS) roll material was designed. Many expensive alloy elements have been substituted by cheap boron alloy, and high‐boron high speed steel roll has been manufactured by centrifugal casting method. The microstructures, mechanical properties and wear resistance of centrifugal casting high‐boron high speed steel roll have been investigated by optical microscopy (OM), scanning electron microscopy (SEM), and X‐ray diffraction (XRD) analysis, hardness test, impact test and wear test. The results indicated that the solidification microstructures of high‐boron high speed steel roll consisted of M₂(B,C), (W,Mo)₂(B,C), M₃(B,C), M₂₃(B,C)₆ type borocarbides and martensite, a small amount of retained austenite. Borocarbides were continuously distributed over the grain boundary. After quenching from 1050 °C, local broken network appeared in partial borocarbides, and fine secondary borocarbide precipitated from the matrix. After tempering from 525 °C, the amount of precipitated borocarbide increased significantly. After heat treatment, the hardness of high‐boron high speed steel roll excelled 60 HRC, and its impact toughness excelled 8.0 J/cm². The single groove steel rolling amount of high‐boron high speed steel rolls increases by 500% than that of bainite cast iron roll, when the rolls are used in K₁ mill housing of bar mill.     

Brainstorming for ISO Strategy 2016-2020

正Responding to ISO’s appeal for survey for the to-be-developed ISO Strategy Plan for 2016-2020,SAC hosted a special workshop over the needs and comments of various fi elds on June 8 in Beijing.The workshop was attended by ISO President-elect and Ansteel General Manager Zhang Xiaogang,SAC Vice-Administrator Yu Xinli,and 30 experts from