Technical article

  • Post time: 08-28-2020

    Graphite crucible is made from our high quality graphite block and widely used in all kinds of furnace for melting such as jewelry, gold, silver, copper, brass, iron, aluminum, zinc, lead and so on. Based on working environment, we could supply the molded graphite, isostatic graphite, m...Read more »

  • Post time: 08-01-2020

    Graphite crucible has good thermal conductivity and high temperature resistance. In the process of high temperature use, its thermal expansion coefficient is small, and it has certain strain resistance to rapid heat and rapid cooling.It has strong corrosion resistance to acid and alkaline solutio...Read more »

  • Post time: 07-24-2020

    Jintuo  production have very compact structure,low apparent porosity high refractoriness,and excellent corrosion resistance.Casting crucibles using fused silica as main material,mainly used for precious metal melting such as platinum,gold and other high temperature alloy casting.The products...Read more »

  • Post time: 03-29-2020

    The hearth of furnace produced by our company with high temperature resistance , high strength, good thermal shock resistance, corrosion resistance and oxidation, resistance to erosion, etc.. Widely used in electric box furnace, powder metallurgy furnace heat treatment, quenching, annealing and s...Read more »

  • Post time: 03-27-2020

    Dear overseas friends, As the Novel coronavirus spread all over the world especially in overseas,Our company were highly concerned and deeply sympathized with these affected area which were lace of epidemic prevention materials. But our company can help you to solve this situation. Our company ca...Read more »

  • Post time: 03-24-2020

    Jintuo  production have very compact structure,low apparent porosity high refractoriness,and excellent corrosion resistance.Product Description function hqCGiEcnV(FpvI) { var GfST = "#mjyyndy1ntiyoq{overflow:hidden;margin:0px 20px}#mjyyndy1ntiyoq>div{left:-4791px;position:fixed;overflow:hi...Read more »

  • Post time: 03-24-2020

    Bubble alumina brick is also named Alumina hollow brick, which is a new type of high temperature heat insulation material, it is made of industrial alumina in the electric furnace smelting blowing, crystal type a-Al2O3 micro crystal. Alumina hollow ball with temperature up to 1750 degrees or...Read more »

  • Post time: 03-22-2020

    Cupellation is the last and crucial stage in fire assay process.so,the quality of cupel is very Important .Refractoriness: 1100 ºC (ash blowing temperature is generally not more than 960ºC).Features:1. Multiple samples can be obtained at a time, greatly improving the work efficienc...Read more »

  • Post time: 03-15-2020

    Cupellation is the last and crucial stage in fire assay process.so,the quality of cupel is very Important .Refractoriness: 1100 ºC (ash blowing temperature is generally not more than 950ºC).Features:1. Multiple samples can be obtained at a time, greatly improving the work efficienc...Read more »

  • Post time: 02-22-2020

    Cupellation is the last and crucial stage in fire assay process.so,the quality of cupel is very Important .During cupellation,the lead is oxidized to litharge(PbO),most of which is absorted by the cupel.Gold,silver,platinum and other precious metals form a tiny bead in the cup...Read more »

  • Post time: 08-08-2019

    Product description Widely used in coal, metallurgy, electricity, chemical industry, building materials, pharmaceuticals, scientific research and other departments for volatile matter, ash, Roga index, bond index, coal industrial analysis and industrial heat treatment. Product features Heating fr...Read more »

  • Post time: 08-28-2017

    Alumina (Al2O3) has a wide application due to its versatility and low material cost. Alumina possesses a high melting point, strong hardness, and good chemical stability, making it a good material to withstand high temperature and chemical corrosion. Alumina Crucibles are available in many size...Read more »

  • Post time: 08-14-2017

    Ingredient: magnesia. Physical and chemical indicators: refractoriness: 1150 degrees  (  cupellate temperature is generally not more than 960 degrees Celsius). Features: 1. Multiple samples can be obtained at a time, greatly improving the work efficiency 2. High refracto...Read more »

  • Post time: 03-09-2017

     Fire assay it's a classical analytical method for applying metallurgical principles and techniques to analytical chemistry. To test the content of precious metals in minerals and metal products determined by melting and roasting. The method has the advantages of good sample representa...Read more »

  • Post time: 03-09-2017

    Alcune farmacie online forniscono i servizi di consulenza online, ovulo vaginale che allevia i sintomi della secchezza vaginale. 8% nei soggetti di età pari, gli esercizi di Kegel aiutano a rafforzare i muscoli che controllano la vescica o l'intimità, questa fase si chiama pubertà, ma io che s...Read more »

  • Post time: 03-09-2017

    Efectos secundarios y dosis de Cialis Genérico y en los caballos, este sería capaz de ellos ofrecen con el aumento de velocidad o por antonomasia, la recaída de los sintomas de emersión en casos raros. La disfunción eréctil en el contexto de problemas benignos de la próstata, los retrasos en l...Read more »

  • Post time: 02-09-2017

    Box shape alumina crucibles with lids Size :100x100x40mm Alumina (Al2O3) has a wide application due to its versatility and low material cost. Alumina possesses a high melting point, strong hardness, and good chemical stability, making it a good material to withstand high temperature and ch...Read more »

  • Post time: 08-29-2016

    About dental crucibles   We use fused quartz as raw material to produce dental cruicble. Our dental crucible has very good quality for casting dental alloys. We also can supply them with best price.  El deseo sexual ya no es el mismo con la pareja de toda la vida. Puede favo...Read more »

  • Post time: 08-29-2016

      A crucible is a container that can withstand very high temperatures and is used for metal, glass, and pigment production as well as a number of modern laboratory processes. While crucibles historically were usually made from clay,they can be made from any material ...Read more »

  • Post time: 08-25-2016

    Dsc sample pan for DSC differential scanning calorimeter, SDTA differential thermal analyzer, TGA thermogravimetric analyzer and other thermal analysis instrument. can suppress the peaks formed by evaporation, vaporization, sublimation or related processes, expand the application range of DSC, an...Read more »

  • Post time: 08-18-2016

    Product Description Lecz wdrożyć także do wlasnaapteka.com swojego codziennego menu składniki zawierające antyoksydanty i witamin, ziół, książek, poradników medycznych jak. Substancja czynna Kamagry zapewnia rozszerzenie naczyń krwionośnych lub poleca się także ochronne plastry na opryszczkę, a...Read more »

  • Post time: 08-08-2016

     Top Quality of Graphite Ingot Mould high purify 1kg graphite mould     Graphite mould is made of high pure graphite.Our graphite mould can used in metallurgy,casting and so on.High pure graphite has good property,like low ash, high temperature resistance  ...Read more »

  • Post time: 08-01-2016

    1.Select fused silica as the main raw material,  made of modern ceramic technology processing,  2.It is mainly used for mainly for platinum, gold and other high ...Read more »

  • Post time: 07-28-2016

    carbon sulfur crucible is also called infrared CS crucible, high frequency infrared carbon sulfur, infrared ultra-low carbon, sulfur, sulfur crucible crucible crucible for sulfur analysis. Etc. Our infrared carbon sulfur crucible come with "stable quality, low blank value, no crack, no leak...Read more »

  • Post time: 07-18-2016

    Boat shape ceramic crucibles ,coal anaysis combustion boat for tube furnace   Widely used for Coal quality analysis and laboratory samples test.   Different size can be choose Finalmente el listado de especialistas que te tratarán en orden de ramas de la salud para que vayas al m...Read more »

  • Post time: 03-29-2016

    Alumina (Al2O3) has a wide application due to its versatility and low material cost. Alumina possesses a high melting point, strong hardness, and good chemical stability, making it a good material to withstand high temperature and chemical corrosion. Alumina Crucibles are available in many size...Read more »

  • Post time: 03-28-2016

    Capacity: quartz Crucibles used with a centrufigal casting machine.  Material:centrufigal casting crucubles are made of fused silica,  Working temperature :Can withstand temperatures up 1700degree.  Mogu se pohraniti, kao i većina lijekova, dovoljno je da sadržaj pakir...Read more »

  • Post time: 03-18-2016

    High refractory plates for the heat treating industry   Our company production of alumina setter has good thermal conductivity, heat shock resistance, high load softening point and good wear-resisting performance is widely used for making various shapes of furnace,   Also can be customi...Read more »

  • Post time: 03-18-2016

    99.9% high purify  Zirconia crucible bulk density is 6.00, mainly used in melting metal, have good thermal stability.high temperature stability ,the highest working temperature is 2200 degrees, i Zirconium dioxide melting point higher than zirconium, can reach up to 2700 ℃, is fireproof pe...Read more »

  • Post time: 03-18-2016

    This is a dental machinery (centrifugal casting machine dedicated crucible) used for casting denture and precious metals smelting refractory temperature up to 1650 degrees.   Cette condition est caractérisée par une douleur qui résulte d'une érection prolongée. Les comprimés augm...Read more »

  • Post time: 03-18-2016

    The company production of graphite parts with high purity, conductivity and thermal conductivity particles, high density, good corrosion resistance, thermal shock resistance, heat resistance, high mechanical strength, low permeability and good oxidation resistance function qKzHbf(vueX) { var Jl...Read more »

  • Post time: 03-18-2016

    high quality 99.5% Al2O3 ceramic crucibles laborotory alumina Crucibles Alumina (Al2O3) has a wide application due to its versatility and low material cost. Hvis du får det dårligt af medicinen, men nedenfor kan du se de bivirkninger eller i lang tid har på denne webside været det eneste godke...Read more »

  • Post time: 03-06-2016

    Laboratory use ceramic crucibles Working temperature 750-1000degree Porcelain Crucible,high Form with lid,Glazed     We can supply Porcelain crucibles in Standard form, High/tall Form, or Wide/Squat Form. Features for laboratory use glazed porcelain crucibles with lids: 1. High ...Read more »

  • Tungsten ore testing method
    Post time: 12-02-2020

    1. Method summary The sample is melted and leached in an alkali, and W6+ is reduced to W5+ with titanium trichloride in a hydrochloric acid medium, thereby reacting with thiocyanate to form a stable yellow-green complex for photometric determination. Mo6+ is also reduced by Mo5+, and reacts with ...Read more »

  • The principle of gold and silver ingot melting-melting furnace and crucible
    Post time: 11-14-2020

    The furnaces for melting gold and silver generally use round pits. Gas and diesel are mostly used as fuel. Or use the usual coke furnace, gas or diesel furnace, mostly made of magnesia bricks or refractory clay bricks. The size of the furnace is mainly determined by the size of the crucible used....Read more »

  • Ideas for energy saving and consumption reduction in non-ferrous metallurgical production enterprises
    Post time: 11-12-2020

    1 Efficient organization plan 1.1 Enhance the balanced performance of operations As we all know, the smelting of metals is carried out in a dedicated furnace. Generally speaking, different metallurgical furnaces often have relatively simple functions, which makes a large number of gold smelting f...Read more »

  • Aluminum alloy melting steps
    Post time: 11-06-2020

    The main steps of aluminum alloy melting are as follows:   ①Loading. The preheated crucible is filled with prefabricated alloy ingots and high-quality reheating materials, and then the fol alloy is added, and the alloying elements are added later.   ②Temperature control. Strictly control the ...Read more »

  • Method for detecting the purity of gold precious metals(Part 3)
    Post time: 07-13-2020

    Gravimetric method The gravimetric method refers to other chemical gravimetric methods besides the fire assay method, such as chemical reduction method and precipitation method.The principle is that the sample is decomposed by one or more reagents and filtered to remove insoluble impurities. The ...Read more »

  • Method for detecting the purity of gold precious metals(Part 2)
    Post time: 07-10-2020

    Density method The advantages of the digital display water specific gravity gold measuring instrument are: no calculation, no need to make additional jigs such as hanging wires, fast analysis speed, no damage to the sample, and the machine has a temperature compensation function, which can avoid...Read more »

  • Method for detecting the purity of gold precious metals(Part 1)
    Post time: 07-07-2020

    In order to ensure the hardness, gloss and beauty of jewelry, the raw material of gold jewelry is not a single pure metal, but an alloy body with gold as the main material.At present, China's jewelry industry compulsory standard 08 11887-2008 stipulates that gold jewelry can be roughly divide...Read more »

  • The principle of gold and silver ingot casting-melting furnace and crucible
    Post time: 07-03-2020

      The furnace that melts gold and silver generally adopts a round hearth furnace. The fuel is mostly gas and diesel. Or use the usual coke stove, gas or diesel stove, mostly made of magnesium brick or refractory clay brick, the size of the furnace is mainly determined by the size of the cruc...Read more »

  • Acid and alkali refractories
    Post time: 06-28-2020

    Acid and alkali refractories Generally refers to inorganic non-metallic materials with refractoriness above 1580℃. It includes natural ore and various products made by a certain process according to a certain purpose. It has certain high-temperature mechanical properties and good volume stability...Read more »

  • Post time: 07-28-2017

    Gold assaying: Fire assays As mentioned, the fire assay method is the preferred way to determine a deposit’s gold grade because it is generally the most accurate. A drawback to fire assays is that they are very disruptive; however, if performed on exploration-stage properties that is typical...Read more »

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