The utility model relates to a graphite crucible with a cover, which is mainly used for growth technology and primarily adopts a falling crucible method for growth of crystal. 带盖石墨坩埚,主要用于生长技术,主要是采用坩埚下降法生长晶体时。
Machinable various types of high-purity graphite-graphite, graphite of mechanical parts and graphite crucible, bearing graphite, carbon brush, and so on. 高纯石墨可加工各类石墨模、石墨质机械零件、石墨坩埚、石墨轴承、碳刷等。可用于冶金、化工、轻工、制药、纺织、石油、国防、航天等行业。
The coating of graphite crucible and its preparation technology, and homogeneity controlling for U-Mo alloy are studied when we melt U-Mo alloy in the vacuum induction furnace. 对真空感应熔炼采用的石墨坩埚涂层材料及其制备工艺、合金成分均匀性控制进行了研究。
Large size CaF_2 crystal has been grown by the Bridgman-Stockbarger method using a graphite crucible. 采用真空坩埚下降法在石墨坩埚中生长了大尺寸CaF2晶体。
Study on Al Vacuum Deposition With Graphite Crucible 真空镀铝用石墨坩蜗的研究
The raise of service life of graphite crucible 石墨坩锅使用寿命的提高
Lead-rich slags with different levels of PbO content have been prepared in laboratory. Reduction experiments have been conducted in a vertical tube furnace using graphite crucible to compare the different behaviours of lead-rich slag and sinter. 选用实验室制备的不同PbO含量的富铅渣与工业化生产的铅烧结块在竖管炉中用石墨坩埚进行还原反应对比试验。
It is found that yt-tria has a good stability to liquid uranium and its alloys at high temperature, and it is well suitable for coating of graphite crucible for melting uranium and its alloys. 结果表明:氧化钇对铀和铀合金熔体的化学稳定性最佳,是熔铸铀和铀合金石墨坩埚的理想涂层材料。
The paper explains the experiment of smelting silver based electric contact materials and silver based solder by medium-frequency induction furnace with graphite and clay crucible. It compares the effects of the two type crucibles on the compositions of the melted materials. 分别用石墨坩埚和粘土坩埚对银基电触头材料和银基钎料进行中频熔炼试验,比较两种坩埚对所熔炼材料成分的影响。
The results showed the reaction between the Mg and Si powders was solid-state reaction and impurities such as MgO, Mg3C2: were usually produced resulting from the reactions with air or graphite crucible since Mg was very active. 结果表明:Mg颗粒与Si颗粒之间的反应是固相反应,杂质的引入是由于Mg元素高度的活泼性能而混入的MgO、Mg3C2等气相反应的产物。
Owing to its low cost and favourable applicability In an all-closed graphite crucible, such gold amalgam is heated directly over 1000 ° C and is capable of melting to form pure gold. 在全封闭的石墨坩埚里,任何含量的汞金直接被加热到1000℃以上,熔化成纯金。
The influence of bauxite based 3-Sialon, graphite pellets and their composite on slag resistance properties of magnesia castables were studied by static crucible method and revolution dipping method. 本文采用静态坩埚法和动态浸渍法考察了矾土基β-Sialon、造粒石墨以及复合非氧化物对镁质浇注料抗渣性能的影响。
Reduction experiments have been conducted in a vertical tube furnace using graphite crucible. 在竖管炉中用石墨坩埚进行还原试验。
The results showed that graphite crucible sample which were dipped by acid phosphate aluminium whose ratio of Al to P is 1/ 2 obtained relatively nice oxidation resistance capability after heat treating, temperature of impregnant and sample should be about 90 ℃ in dipping process. 结果表明:试样浸渍Al/P比值为1/2的酸式磷酸铝、控制工艺过程中浸渍剂和试样的温度在90℃左右,石墨坩埚试样浸渍处理后可获得较理想的抗氧化性能。
Development of a multifunctional graphite crucible 一种多功能石墨坩埚的研制
Preparation of Bulk Amorphous Alloy by Electric Arc Furnace with Graphite Crucible 在石墨坩埚电弧炉中制备大块非晶合金
In the process of single crystal growth, the carbon is incorporated into silicon lattice through the way which molten silicon absorbs CO gas. This CO gas is generated from interaction between silica crucible and graphite crucible. 晶体生长过程中,碳通过石英坩埚和石墨托埚之间的相互作用产生的CO气体被融硅吸收的途径进入到硅晶格中。
Experiments were carried out in the Molybdenum-wound furnace under Ar atmosphere in the graphite crucible. 实验是在钼丝炉内,Ar气氛下,石墨坩埚中进行的。
In accordance with the conventional production process, the loss of lithium is often about 7%, when Al-Li alloy is melted in graphite crucible. 根据生产经验,用石墨坩埚熔炼铝锂合金,锂的损失一般稳一在7%左右。
The sample in tin leaf clad is put into a graphite crucible with a cap. Firstly, the sample is decomposed by heat at about 660 ℃, and the multiform oxygen in the sample is reserved in tin-lithium alloy by the Li2O form. 将锡箔包裹的试样投入带盖石墨坩埚中,第一步先在脉冲电弧炉中于660℃左右热分解,试样中各种形式的氧以Li2O形式保留在生成的锡锂合金中;
Levitation melting is used instead of graphite crucible heating. 用悬浮熔融代替石墨坩埚加热方法。
It was found that the thermal shielding condition above the crucible lid, i.e. the hole shape and size in the graphite felt, plays an important role in determining the temperature uniformity on the crucible lid. 研究认为,坩埚盖上部石墨毡开孔形状和大小对坩埚盖的径向温度场有很大影响。
Large size fluoride single crystals LiF, CaF 2 and LaF 3 have been grown by Bridgman-Stockbarger method in home-made furnace using a graphite crucible. 采用坩埚下降法,在自制的真空炉内石墨坩埚中生长了大尺寸LiF、CaF2和LaF3晶体。
Experiment is divided into two phases, First, at high temperatures using high-titanium slag and graphite crucible wall reaction produce the bonding layer of Ti ( C, N), and investigated the influence of reaction time on Ti ( C, N) formation. 实验分为两个阶段进行。首先在高温下采用高钛渣与石墨坩埚壁反应生成Ti(C,N)粘结层,并考察反应时间对Ti(C,N)生成量的影响。
Select water-cooled copper mold and graphite crucible as the reaction vessel, and set different welding current and duration of preparation. 氩弧熔化时分别选用水冷铜模和石墨坩埚做反应容器,设置不同的焊接电流和持续时间。