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The raw material as clay enter the material box after vacuum clean ,will be molding bye the knife blow ,when change the different model ,it will make different type air brick .

泥土等原料通过真空净化后，进入受料箱，由下级绞刀挤出成型，当机口采用不同模型时，可生产各种规格的空心砖。

Features: 1 to the Al-Si eutectic alloy composite added a variety of heat-trace elements and, through orthogonal experimental design and optimize the use of rare earth elements - Modification of phosphorus and salt air brick bottom melting technology, access to the ideal Detroit microstructure - in high intensity, good plastic α-Al matrix on the distribution of the large size of coarse crystal silicon and Chinese characters or fish-bone-shaped iron phase, raising the Pistons at room temperature plastic and high temperature strength, lower raw material costs.

通过向共晶铝硅合金中复合添加多种微量热强元素，并通过正交试验优化成分设计以及采用稀土－磷盐复合变质处理和炉底透气砖熔炼技术，获取理想的活塞金相组织——在强度高、塑性良好的α-Al基体上分布尺寸较粗大的共晶硅和汉字状或鱼骨状铁相，提高活塞室温塑性和高温强度，降低原材料成本。

Background of Project: taking industrial waste residue and municipal refuse as raw material, Luohe Huaxia New Type Building Materials Co., Ltd is a professional firm to manufacture free burnt supporting brick, air brick, ordinary brick, cork brick and light partition board, fire plate, light silico calcium plate and other new type building materials.

项目背景及建设条件：漯河市华夏新型建材有限公司是一家专业利用工业废渣和城市垃圾为原料，生产免烧承重砖、空心砖、砌块砖、多孔砖、轻质隔墙板、防火板、轻质硅钙板等新型建材的企业。

Companies adhere to quality first, service first, the strict customs of raw materials, the production of customs clearance, customs inspection, the product all the year round by the users, have been applied to highway projects, the city of civil air defense engineering, bridge engineering, real estate development projects such as construction.

公司坚持质量第一、服务第一，严把原材料关、生产关、检验关，产品常年受到用户欢迎，已应用于高速公路工程、市人防工程、桥梁工程、商品房开发工程等建设中。

The invention provides an anhydrous hydrogen fluoride production process; reaction raw materials fluorite powder and sulfate are mixed by an external mixer and enter into a converter with jacket; hot air with the temperature of 350 DEG C to 600 DEG C is fed in the jacket; the fluorite powder and the sulfate have chemical reaction and produce hydrogen fluoride; the produced hydrogen fluoride enters into a scrubber from a furnace header to be washed; the washed hydrogen fluoride enters into an intermediate tank from a condenser, and then receives distillation and degasification to prepare the finished product anhydrous hydrogen fluoride; solid residue is emitted from a furnace tail.

本发明提供一种无水氟化氢生产工艺，反应原料萤石粉及硫酸经外混器混合后进入带有夹套的转炉，向夹套内通入350～600℃的热风，萤石粉和硫酸在发生化学反应生成氟化氢，生成的氟化氢气体由炉头进入洗涤塔进行洗涤，洗涤后的氟化氢由冷凝器进入中间槽，然后经过精馏、脱气制得成品无水氟化氢；固体残渣由炉尾排出。

SnO2/kaolin composite was prepared from SnCl2 and kaolin as raw materials by alcoholysis and ammonia.

以氯化亚锡和高岭土为原料，通过醇解，氨解反应，制备了纳米SnO2/高岭土复合材料。

Pentanediol dithiophene ester was synthesized by means of alcoholysis reaction using 2,4-Pentanediol and Aroly chloride as raw materials, and 1H NMR spectrum was characterized and it can not be explained.

以2，4-戊二醇和芳酰氯为原料，通过醇解反应合成了一种新的内给电子体化合物二(2-噻吩甲酸)-2，4-戊二醇酯，表征其1H-NMR谱，发现化学位移在2附近出现了三组亚甲基峰，无法解释。

Because of its production of raw materials is not all fine flour, but a mixture of wheat flour has been milled down the process of the cortex, germ, aleurone layer and a small amount ...

由于其制作的原料并不全是精面粉，而是混合了小麦在磨粉过程中被碾下来的皮层、胚芽、糊粉层及少量。。。

Surrounded by snow and ice, an Aleut hunter slices slabs of raw whale blubber for dinner.

在冰天雪地的极地，爱斯基摩人的晚餐是切成厚片的鲸的生肉。

For comparison,SnO_2 nanoparticles(with average particle size of 200nm) were divided into two aliquots: one aliquot was used as the material for the fabrication of thick-film gas sensors(denoted as "raw sensors").

作为气敏材料，在可燃气体检测和有毒气体探测器的研制中，SnO2是研究最多、使用最广的一种材料[1，2]。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。