Gold is a rare and highly valued commodity that has long been first choice for in vesting by the masses. Gold has been used to create jewellery, coins and other decorative items for hundreds of years. Gold is said to be among the most precious and fabulous commodities. What is very difficult to find remain, gold in nature. It is typically found in trace amounts which makes it difficult to locate and harvest. In the search for gold, miners employ different methods, one of which is the fire assay method.
In nature, gold is often mixed with other kinds of rocks and minerals. So we need to know how pure the gold is before we can use it for example to make jewelry or coins. One way of testing the purity of gold is doing a fire assay. When this method is used, a small amount of gold is melted with an alloy of specific substances. Such materials help to clean the Gold and refine it for use into the different products.
Fire assay: Fire assay method definition has some important preliminary steps. Each procedure needs to be done with care and in an accurate way to get proper and believable outcomes. It all starts by getting a sample of the gold we want to analyze. The next step is mixing our sample with lead oxide, borax and silica in a special pot called crucible. The crucible containing the mixture is then heated in a furnace until it becomes superhot, over 1000 degrees C! It is this high temperature which melts the materials together.
We heat for several hours, take the crucible out of the furnace, and let it cool down. While it is cooling the lead oxide and borax has made itself into a flux that could diminish any more gold, this makes the gold turn as pure as they possibly can. After everything cools, we will have to weight all the material obtained dry to know how much gold our sample contein. It help us take an exact reading of the purity of gold.
The history of the fire assay method goes back far away. People have been using it to find gold for centuries. This is not to say that miners have always mined the same way; pre–positional mining methods are quite different from today's techniques (e.g., panning and sluicing). Unfortunately, these antiquated methods were not always effective and could often cause errors. The fire assay process began in China during the 12th century and within centuries spread through most of Europe. This eventually made its way to the United States during the 19th century.
It is actually the most preferred and reliable method for checking the purity of gold-the fire assay method. It even helps to identify as the tiny spot of the gold within its presence. It's important for implicitly correct machining applications for jewelers and others working with gold when the goal is to make sure that you work with quality. The process is also fair simple and can be done with basic tools that most miners and jewelers have access to.
Nevertheless, the fire assay method is not without its problems and constraints. A disadvantage is it can take a long time to fully run, frequently hours or even more. If one has a lot of gold to test, this may be cumbersome. Also, the fire assay method cannot be used for large amounts of gold at a go, which can limit its suitability in some scenarios. Furthermore, the heat required for this technique to be effective can be hazardous. Hence, safety measures are required to be followed so that everyone working on it is safe.
The company's ongoing RD investments, technological advancement and improvements in product quality have led to successive ISO9001, fire assay method for gold and SGS certifications. It also has CMC national production license for measuring instruments in the refractory business, as well as independent intellectual property rights and more than 50 national invention patents and utility model patents.
The primary products of the company are high-temperature and medium-temperature heating furnaces as well as sample preparation equipment high-temperature fire assay method for gold high-temperature furnace linings and computer-controlled systems Chemical reagents for laboratories etc
We are very proud of our fire assay method for gold products due to the fact that we are not just experienced application engineers but also design engineers who are focused on the details and operational. We have a wealth of knowledge in high-temperature testing, and are able to provide customized thermal testing equipment for specific projects. We also provide high-temperature technology consultation services and also test samples.
Our products are used widely in the ceramics and metallurgy industries, as well as building chemicals, materials, fire assay method for gold and other composite material industry. The main universities of the company National Quality Inspection Agencies as well as scientific research centers, refractory materials and other production enterprises and steel units, through international transportation, exported to regions and countries in Asia, Europe, the Middle East and Africa. Methods of transportation: We can support air transportation, sea transport express delivery, and rail transportation.
Nanyang JZJ Testing Equipment Co., Ltd, се намира в Nanyang, провинция Хенан, Китай, град с дълга културна и историческа среда. В момента тя се е превърнала във водеща в индустрията високотемпературна (огнеупорни материали) промишлена верига компания, която работи в Азия, Европа, Близкия изток и Африка.
Gongye Road, Wolong District, Nanyang City, провинция Henan, Китай
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