1. 熔化玻璃，最省工，省钱的方法
一、用具
1、坩埚（模具）：它是用耐火材料制作而成，三使用前需检查坩埚漏孔是否有砂眼、破裂、多眼、穿孔，漏板是否平整，检查后进行预热并置坩埚架上调试。坩埚在各耐火材料厂有生产供应，生产玻璃纤维的厂家也用此物。浙江省金华市较店镇北山路金华市面砖厂长期供应各规格坩埚，每只150孔1.70元，120孔1.60元，孔径1.7，1.8，1.9，2.0，2.1，2.2，毫米的，我们使用2.2毫米大孔径的坩埚为好。联系人：方一，邮政编码：321021，金华市广场坐3路公共汽车直达。另：湖南省冷水滩市保险公司后面米家山路玻纤厂有售，联系人：姜师傅，邮政编码：425100；山东省淄博市淄川玻璃窑材料厂有售，联系人：刘恩礼，邮码：25154；山西省侯马市晋都立交交桥西配件厂背后侯马市南堡金汤坩埚厂有售，联系人：吴明秀，邮码：158321；江苏省海安县南屏坩埚厂有售，邮码：21661；安徽省凤阳县坩埚厂有售，邮码：233100。以上厂家地址请学员自己就近选择，应先去信联系好，再去人或托人购买，不能托动和邮寄。
2、喷打：是点引坩蜗（融化玻璃）的引火用具，只有在喷打高温下，使玻璃熔化为液体，才能使玻璃自然充电并溶化，点燃喷灯时要喷灯完全预热至工作状态（喷灯呈蓝色火焰）方可使用。（喷灯有汽油、煤油、柴油之分，以汽油喷灯为佳。在各县市五交化公司门市部有售50元一只）。另：也可用喷灯点火，而用化学药物点火，化学药物为氢氧化钠，精细食盐（氢氧化钠是化学试剂药物，各县市化学试剂商店、医药公司试化柜台，各县市医院化验室或生化检验科均有售，每瓶500元，8元，可使用一年，精细食盐就是家庭食用盐，研成细末即可，一斤也可用上一年，成本极低）。
3、电极片、炉丝：电极片也称埚片或电极板，是沟通电源重要部件，用钢板和钢筋焊接而成。炉丝也称引火线，是用14号小铁丝使用。
4、工作台：主要用来支撑坩埚架和添加玻璃方便的台子，此台要300块砖，一包水泥砌成，坩埚架用角铁焊接而成，安装时要求四周平衡至水平。
5、拉丝钳：用6-8号钢筋制作（手握部位要进行绝缘），钳口要平衡、整齐，使用时要求轻松自如。另：用50公分长的玻璃棒管也可引接牵拉玻璃丝。
6、电源线路：电源要求具有三相电源（功率2.5千瓦以上），即两根火线、一根零线，使用电表需10安以上，30-60安培三相总电闸一只，30安培一闸两用倒顺闸刀一只，一头接两根火线380伏，另一头接一根零线220伏电源，使380伏及220伏能交替使用。
http://www.cysj.net.cn/zixuninfo.asp?fox=3154
2. 哪里有卖食用纯碱碳酸钠的
1、食品添加剂商店都有
2、超市也有
3、食杂店多数也有
4、标食用碱的就是了
3. 纯碱是啥化学式,纯碱一般哪里有卖
1.纯碱即碳酸钠，是一种无机化合物，其分类属于盐，不属于碱。
2.纯碱是一种重要的无机化工原料，主要用于平板玻璃、玻璃制品和陶瓷釉的生产，也广泛用于生活洗涤、酸类中和以及食品加工等，还用于照相术和分析领域。
4. 介绍焦作的英语演讲稿
Jiaozuo City, Henan Province is located northwest of the north border of Shanxi Taihang, south of the Yellow River in Zhengzhou, Luoyang sea. 4 jurisdiction over 2 cities and 4 counties and 1 district tech Instry Development Zone, with a total area of 4071 square kilometers, with a total population of 3,455,000, of which the urban population of 807,000, the urban population 1,331,000. In 2004, the Jiaozuo City realized 45.523 billion yuan GDP, per capita GDP reached 13,413 yuan, according to the current exchange rate can be converted into $ 1,633; Last year's local revenue of 2.44 billion yuan, fixed assets investment 18.72 billion yuan, All the instrial added value 23.51 billion yuan, per capita disposable income of urban residents per capita net income of rural residents reached 7,286 yuan, 3,374 yuan, urban and rural residents amounted to 25.39 billion yuan savings deposits. Jiaozuo has a superior geographical advantages. It is located in the intersection of North and South, East and West junction, but also a new Eurasian Continental Bridge in the heart of China, with east and west, north, Nantong hub groove. Jiaozuo has convenient transportation advantages. It is located in the north and south of the Yellow River channel, briefly hub of Shanxi Henan provinces, Henan Northwest has always been an important material distribution center. Coke territory branches (Jiaozuo - Zhicheng), coke too (Jiaozuo - Taiyuan), Jiao Xin (Jiaozuo - Xinxiang), Hou month (month Mountain - Houma) four railway lines, on mountains, to be king two large freight marshalling yard and railway transportation. The city's total length of 4953 km, road density, 121.6 km / hundred square kilometers, much higher than the provincial and the national average. Zheng has been built within the coke, coke Jin two high-speed, mileage of 72.8 kilometers, is under construction coke temperature, the new focus of economic, Ji Luo three high-speed, "fifteen" at the end, Jiaozuo will achieve "every county high-speed," the goal central city to city and county can achieve high-speed connection, will be to build up a half-hour economic circle, the city's expressway network will also work with the Beijing-Zhuhai, too Australia and even the national trunk highway Huo and other connectivity, Jiaozuo in central and western China region will be more obvious location advantages, economic radiation further enhanced. Jiaozuo has unique natural resources. First, very rich in mineral deposits. There 40 kinds of mineral resources with proven reserves of coal, limestone, bauxite, refractory clay, pyrite and other 20 kinds, including recoverable reserves of 600 million tons coal, into a single high-quality anthracite, is the chemical and steel ideal for instrial raw materials; refractory clay shallow, easy to exploit, is the proction of ceramics, high-quality refractory raw materials, has proven reserves of 50.49 million tons; iron ore reserve is 27.26 million tons of instrial reserves of 7.406 million tons, the magnetite Lord, the iron content of 32%; limestone reserves of 100 million tons forecast, the proction of soda ash, acetylene, cement and other procts of high quality raw materials; pyrite reserve is 34.755 million tons, accounting for 41% of the province's reserves. Second, abundant water resources. Jiaozuo is a rare water-rich North China area, many rivers within the basin area of 100 square kilometers of the river there are 23, there cited Qin channel, Kwong Lee two artificial drainage channels, there are heroes, Qingtian River, White wall, along streams and other large reservoirs, water diversion project will also benefit from the construction of the cut through downtown and over, which gave ample Jiaozuo bring surface water; particularly important, Jiaozuo City, is a natural collection of groundwater basins, and the southeastern mountains of northern mountainous area about 1400 square kilometers of the majority, are groundwater recharge areas of Jiaozuo, shallow groundwater in these areas and part of precipitation, in a complex geological structure under the control of collection to the city, karst formation of more abundant water resources, has proven reserves of 3.54 billion cubic meters of groundwater. In addition, the Taihang Mountains in the south of the northern distribution of Jiaozuo of about 500 square kilometers of land and gravel sloping piedmont plains Kong, hard solid geological strata great stamina, and neighbors deposits, water, transportation routes and towns, is highly desirable instrial land also very suitable for the construction of high-rise buildings.
原文：
焦作市位于河南省西北部，北依太行与山西省接壤，南临黄河与郑州、洛阳相望。现辖2市4县4区和1个高新技术产业开发区，总面积4071平方公里，总人口345.5万，其中市区人口80.7万,城镇人口133.1万。
2004年，焦作市实现地区生产总值455.23亿元，人均生产总值达到13413元，按现行汇率可折合为1633美元；全年完成地方财政收入24.4亿元，全社会固定资产投资187.2亿元，全部工业增加值235.1亿元，城镇居民人均可支配收入和农村居民人均纯收入分别达到7286元、3374元，城乡居民储蓄存款余额为253.9亿元。
焦作有着优越的区位优势。它地处我国南北交汇点，东西结合部，又是新欧亚大陆桥在中国境内的中心地带，具有承东启西、沟南通北的枢纽地位。
焦作有着便利的交通优势。它地处黄河南北之通道，扼晋豫两省之要冲，自古就是豫西北地区重要的物资集散地。境内有焦枝（焦作--枝城）、焦太（焦作--太原）、焦新（焦作--新乡）、月侯（月山--侯马）四条铁路线，有月山、待王两个较大的货运编组站，铁路交通便利。全市公路总里程达4953公里，公路密度121.6公里/百平方公里，远高于全省和全国平均水平。境内已建成焦郑、焦晋两条高速，通车里程达72.8公里，正在建设焦温、新焦济、济洛三条高速，“十五”末，焦作将实现“县县通高速”的目标，中心城市到各县市均可实现高速连接，届时将构筑起一个半小时经济圈，全市的高速公路网也将与京珠、太澳、连霍等国家干线高速公路连通，焦作在我国中西部地区的区位优势将更加明显，经济辐射能力进一步增强。
焦作有着得天独厚的自然资源。一是矿藏十分丰富。有矿产资源40多种，探明储量的有煤炭、石灰石、铝矾土、耐火粘土、硫铁矿等20多种，其中煤田可开采储量6亿吨，为单一的优质无烟煤，是化工和钢铁工业的理想原料；耐火粘土埋藏浅，易开采， 是生产陶瓷、耐火材料的优质原料，已探明储量5049万吨；铁矿保有储量2726万吨，工业储量740.6 万吨，以磁铁矿为主，含铁量32%；石灰石预测储量100亿吨，是生产纯碱、乙炔、水泥等产品的优质原料；硫铁矿保有储量3475.5万吨，占全省储量的41%。二是水资源充沛。焦作是华北地区不可多得的富水区，境内河流众多，流域面积在100平方公里以上的河流有23条，还有引沁渠、广利渠两大人工渠，有群英、青天河、白墙、顺涧等较大水库，即将修建的南水北调工程也将从中心城区斜穿而过，这些都给焦作带来了充裕的地表水资源；特别重要的是，焦作市是一个天然的地下水汇集盆地，北部山区及晋东南山地约1400平方公里的广大地区，均为焦作地下水的补给区，这些地区的浅层地下水和部分降水，在复杂的地质构造控制下，汇集到我市，形成较为丰富的岩溶水资源，目前已探明地下水储量35.4亿立方米。另外，在焦作北部太行山南麓分布着约500平方公里的山前岗地和砾石倾斜平地，地质坚硬稳固，地层耐力巨大，且近邻矿点、水源、交通干线和城镇，是极为理想的工业用地，同时也非常适宜建造高层建筑。