X射线荧光分析对于粉末样品，目前采用直接压片法制备试样较为普遍，但由于粒度、矿物、偏析等效应的影响，势必带来分析误差，降低元素分析的精密度与准确度，样品制备已经成为一个主要的误差因素。玻璃熔融法制成的试样能消除试样的粒度、矿物、偏析等效应，同时也可降低样品元素间的吸收和增强效应，会明显提高分析的和准确度。对于ICP、AA和湿法化学分析手段，对于难溶样品，熔融方法同样是一种非常完美的制样手段。
多年来国内所采用的熔融设备均依赖进口，价格非常昂贵，针对这种局面，本公司科研人员于2002年开发完成了的DY501型电热熔融设备。它吸取了当今国际市场上同类制样设备的优点，其主要性能达到甚至超过国外同类产品。由于其优异的性能和合理的价格，定将取代进口产品，并使原来由于经济原因暂不用熔融设备的用户也能使用它。DY501型电热熔融设备的推出，定将迅速普及熔融制样法，从而提高我国分析界制样的水平，为各行各业带来巨大的经济效益。
Currently, powdered samples for X-ray fluorescence analysis are usually directly pressed into sample pieces. But that kind of sampling has become a major error factor impacting the precision and accuracy of the element analysis due to the granularity effect, mineral effect and segregation effect of the sample pieces. The bead fusion method can eliminate the granularity, mineral and segregation effects of the samples, and can reduce the absorption and enhancement effects between the elements in the sample, and hence evidently increase the precision and accuracy of the analysis. This bead fusion method is a perfect sampling method for ICP, AA, as well as for indissolvable samples in wet chemical analysis.
For many years, the fusion machine used in China were all imported from abroad at very high price. To fill up that gap in Chinese science and technology, the research and development personnel in our company developed the DY501 Electroheat Fusion Machine in the year 2002. This fusion machine absorbed the advantages of all the fusion machine of the same kind in the international markets, with key properties up to or even better than those of the overseas products. With its excellent performance and reasonable price, it will take the place of the imported products and can be affordable for the users which are currently not using fusion units just because of economic reasons. The popularization of the DY501 Electroheat Fusion Machine will rapidly promote the bead fusion method in China and hence improve the sampling quality of the element analysis, which can bring tremendous economic benefit for every industry or trade.
公 司 简 介
INTRODUCTION
上海宇索电子科技有限公司是由长期致力于X荧光分析仪销售服务和研究开发的技术人员合资成立的一家高科技企业。公司的创办者在长期的X荧光分析仪的销售服务和研究开发中深切地体会到样品制备对荧光分析的重要性，而的样品制备方法就是玻璃熔融法，但当时国内所采用的熔融设备均依赖进口，价格又非常昂贵，所以成立了本公司。
本公司在2002年成立后的短短一年时间里，就开发完成了的DY501型电热熔融设备。至2005年，DY501型电热熔融设备的用户已达近百家，并受到用户的一致好评。公司现有科技人员多名，其中工程师3名，博士1名，现正研究开发DY511型全自动电热熔融设备和DY521型全自动单头实验室用小型电热熔融设备，并将于2006年中推向市场。
本公司是样品熔融的，分析的好帮手。
Shanghai Yusuo Electronic S&T Co. Ltd. is a high technology enterprise established by the experienced people who focus on the sales, service and research of X-Ray analysis instrument many years. As the bead fusion is widely recognized as valuable means in X-Ray analysis, which can improve the reliability of the analysis results, but in China all the fusion machine has to imported, which very expensive and response time of service is very long. To provide local China solution, Shanghai Yusuo Electronic S&T Co., Ltd was setup on 2002.
One year after the 2002, the company introduced DY501 electroheat fusion machine. Till now, there are around hundred systems using in China, which make DY501 a very popular fusion machine. Now the company has many technical developing persons, three of them are senior engineers and one doctor. Now the new model DY511 fully automatic electroheat fusion machine and DY521 fully automatic mini electroheat fusion machine is under developing, and will introduce in the mid of 2006.
Yusuo, the expert on bead fusion, your assistant on analysis.
部分用户名单
常州中天钢铁(2台)
苏钢集团公司
紫金矿业股份公司
江苏沙钢集团公司(2台)
内蒙古霍煤鸿骏铝电公司
郑州轻金属研究院
南京梅山矿冶有限公司
天津钢厂(4台)
武汉理工大学
贵阳地球化学研究所
柳州钢铁股份有限公司
湘潭钢铁集团有限责任公司(3台)
江西景德镇陶瓷学院
广东省环境保护监测站
湛江出入境检验检疫局
广东省韶钢集团有限责任公司(2台)
中国科学上海硅酸盐研究所
合肥中皖化学试剂有限公司
泰山玻璃纤维股份有限公司
贵州六盘水市水钢新建炼纲工程
福建省三明市钢厂(2台)
华南理工大学分析测试中心
浙江省师范大学旅游学院
安徽省铜都铜业股份公司金昌冶炼厂
中国科学院西安地球环境研究所
安徽皖维高新材料股份有限公司水泥分公司
技术参数：
加热单元：3根双螺旋单端硅碳棒；
温度：1250℃，连续可调；
测温单元：2根铂铑热电偶，测温1600℃；
容量：同时熔融4个样品（可根据用户要求增加到6个）；
功率：6kw;
电源：380-415V,50-60Hz，三相;
尺寸（高´宽´深）：500mm´1217mm´500mm;
重量：115kg.
Heating unit: 3 pieces of double helix ,single-end, silicon carbide rod
Maximum Temperature: 1250℃,continuously adjustable
Temperature measurement unit: 2 pieces of platinum-rhodium thermocouple, with maximum measurable temperature 1600℃
Capacity: 4 samples simultaneously (maximum 6 samples if required by user)
Wattage: 6kw
Power supply: 380-415V,50-60Hz，three phase
Dimension(Height x Width x Depth): 500mm´1217mm´500mm
Weight: 115kg
主要特点：
◆采用CPU微机及PID控制技术，大屏幕中文显示,菜单式操作；
◆双螺旋硅碳棒加热，铂铑热电偶测温；
◆多可同时熔融4个样品（可根据用户要求增加到6个）；
◆可预先自由设定多达10个加热制样程序，其加热过程，升温速度，终温度，坩埚架摇摆时间、幅度、速度，冷却时间，是否用风扇，风量大小等均可预先设定；
◆除熔融样注入成型模具采用手动外，其他均自动控制，保证了样品的一致性和均匀性，真正做到不同样品仅是其成分不同而没有其他不同；
◆坩埚及成型模具的支架采用耐高温合金钢制成,保证在高温状态下无任何化学反应；
◆熔样室盖打开装置采用链轮杠杆结构，操作轻松自如；
◆具有启动温度报警，打开熔样室断电保护；
◆具有过流、过温断电保护并报警，并且过温断电保护采用与加热制样独立的热电偶测温，与加热控制电路一起组成三重保护，使过温断电保护更可靠。
Applies CPU microprocessor and PID control technique, large screen Chinese display, and menu operation
Heating with double helix silicon carbide rod; temperature measured with platinum-rhodium thermocouple
Up to 4 samples can be fused simultaneously (maximum 6 samples if required by user)
Up to 10 customized heating programs can be preset; within the programs, the heating process, the temperature increase speed, the final temperature, the shaking time, shaking amplitude, and shaking speed of the crucible stool, the cooling time, whether to use fans, the air flow, and so on, all can be preset.
Automatic control in all the process except for the filling of the fusion sample, enabling the sameness and homogeneity of the sample; all samples are uniformly the same except for the differences in composition
The bracket of the crucible and the mould are made of high temperature alloy, which guarantees no chemical reaction in high temperature
Chain wheel lever structure is used in the opening device of the cover of the fusion room, trouble-free for user operation
With minimum start temperature alarm and power switch-off protection when the cover of the fusion room is open
Automatically switching off power and setting alarm for overcurrent and overheat; independent temperature measurement thermocouples are used for overheat protection and heating control; together with the heating control circuit, they can form treble protection of the system and can make the power switch-off protection for overheat more reliable.