天天日夜夜,久久老女人,人人爱国产,91视频青青草

◆可4個樣同時熔融，自動搖擺，自動控制；

◆成型模具自動加熱，自動冷卻，自動成型；

◆大屏幕中文顯示，過流過溫自動報警切斷；

◆可自由設(shè)定加溫過程，預(yù)存多個加溫程序。

X射線熒光分析對于粉末樣品，目前采用直接壓片法制備試樣較為普遍，但由于粒度、礦物、偏析等效應(yīng)的影響，勢必帶來分析誤差，降低元素分析的精密度與準(zhǔn)確度，樣品制備已經(jīng)成為一個主要的誤差因素。玻璃熔融法制成的試樣能消除試樣的粒度、礦物、偏析等效應(yīng)，同時也可降低樣品元素間的吸收和增強(qiáng)效應(yīng)，會明顯提高分析的精度和準(zhǔn)確度。對于ICP、AA和濕法化學(xué)分析手段，對于難溶樣品，熔融方法同樣是一種非常**的制樣手段。

多年來國內(nèi)所采用的熔融設(shè)備均依賴進(jìn)口，價格非常昂貴，針對這種局面，本公司科研人員于2002年開發(fā)完成了******的DY501型電熱熔融設(shè)備。它吸取了當(dāng)今國際市場上同類制樣設(shè)備的優(yōu)點(diǎn)，其主要性能達(dá)到甚至超過國外同類產(chǎn)品。由于其優(yōu)異的性能和合理的價格，定將取代進(jìn)口產(chǎn)品，并使原來由于經(jīng)濟(jì)原因暫不用熔融設(shè)備的用戶也能使用它。DY501型電熱熔融設(shè)備的推出，定將迅速普及熔融制樣法，從而提高我國分析界制樣的水平，為各行各業(yè)帶來巨大的經(jīng)濟(jì)效益。

Four samples fused simultaneously， with auto-shaking and auto control

Auto control means the melting， shaking and standing steps are all precisely repeatable

Large screen display; auto-alarm and automatic power switching off for overcurrent and overheat

Customizable heating process， with several heating programs preset

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.

技術(shù)參數(shù)：

加熱單元：3根雙螺旋單端硅碳棒；

**溫度：1250℃，連續(xù)可調(diào)；

測溫單元：2根鉑銠熱電偶，**測溫1600℃；

容量：同時熔融4個樣品（可根據(jù)用戶要求增加到6個）；

功率：6kw;

電源：380-415V，50-60Hz，三相;

尺寸（高×寬×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 ×Width × Depth): 500mm×1217mm×500mm

Weight: 115kg

主要特點(diǎn)：

◆采用CPU微機(jī)及PID控制技術(shù)，大屏幕中文顯示，菜單式操作；

◆雙螺旋硅碳棒加熱，鉑銠熱電偶測溫；

◆*多可同時熔融4個樣品（可根據(jù)用戶要求增加到6個）；

◆可預(yù)先自由設(shè)定*多達(dá)10個加熱制樣程序，其加熱過程，升溫速度，*終溫度，坩堝架搖擺時間、幅度、速度，冷卻時間，是否用風(fēng)扇，風(fēng)量大小等均可預(yù)先設(shè)定；

◆除熔融樣注入成型模具采用手動外，其他均自動控制，保證了樣品的一致性和均勻性，真正做到不同樣品僅是其成分不同而沒有其他不同；

◆坩堝及成型模具的支架采用耐高溫合金鋼制成，保證在高溫狀態(tài)下無任何化學(xué)反應(yīng)；

◆熔樣室蓋打開裝置采用鏈輪杠桿結(jié)構(gòu)，操作輕松自如；

◆具有*低啟動溫度報警，打開熔樣室斷電保護(hù)；

◆具有過流、過溫斷電保護(hù)并報警，并且過溫斷電保護(hù)采用與加熱制樣獨(dú)立的熱電偶測溫，與加熱控制電路一起組成三重保護(hù)，使過溫斷電保護(hù)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.