Welding Workshop 

Understanding the Diferences between Heat Treatment, Annealing, and Tempering!

Heat Treatment, Annealing, and Tempering are three well-known methods for giving treatment to metals. Depending on the treatment used, a material may become more or less brittle, harder or softer, or stronger or weaker. The method chosen depends on the desired characteristics of the material. If steel is being treated, for instance, the designer may desire an end material with a high tensile strength but a relatively low degree of brittleness. In order to achieve the desired levels, the designer may make use of several treatments, alter the temperature at…

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How Testing of Rubber Compound is Carried Out?

This can be sub-divided into two distinct categories: Testing of unvulcanized compound. Testing of vulcanized compound. Testing of Unvulcanized Compound Testing of Unvulcanized Compound Test Measuring Instrument Significance Viscosity Moony viscometer It gives idea about processing performance of the rubber compound in moulding. Scorch time Moony viscometer Optimum cure time can be obtained. Testing of Vulcanized Rubber Compound No tests should be performed until at least 16 hours after vulcanizing as significant post vulcanization changes in structure of the material may occur during this period. Tensile Test – These tests…

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What is Cryogenic Tumbler?

After the rubber parts are removed from the moulds, they contain thin flash, a result of the elastomer flowing in multisection mould. This flash is typically removed by exposing the parts to a cryogenic tumbling process. This process is carried out in a machine known as cryogenic tumbler. In this machine liquid Nitogen is used to bring the temperature down upto -1960 C. Rubber components are put in the machine and the machine is then switched on. Due to the cooling effect, these components become brittle. The flash being the…

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What is Vulcanization of Rubber?

The process transforms elastomers with weak thermoplastic properties into a strong, elastic and tough substance with useful properties and introduces a network of cross links into the elastomers. Tensile strength is maximum at optimum cure. Beyond this point, the stock is said to be over cured. It gets stiffer and harder but weaker and less extensible. Techniques of Vulcanization Vulcanisation can be carried out using several techniques. Compression Moulding – This is the most common method used in the industry. Here the blank is placed in a two piece mould, one…

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What are Various Types of Moulding Furnaces?

A metal must be heated to the correct pouring temperature which is slightly higher than its melting point before it can be cast. There are several ways in which a metal can be reduced to the liquid state. Cupola Furnace – The first and usually the cheapest method of melting iron is in a cupola furnace. The cupola is a melting furnace which is fired with coke to produce the high temperature required for melting iron. In addition to the charge of pig iron, other materials such as lime stone…

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Information About Iron Powder

Iron powder is press that has experienced a powdering methodology, either from radial crumbling or atomization. Besides being less expensive that iron bars, iron powder permits powder metallurgists flexibility in outlining iron throws, on the grounds that the measure of pores can be controlled. Powdered iron is normally joined with other powdered metals to bring about a noticeable improvement suited for composites or to give the iron exceptional properties. Most powdered iron is utilized as a part of sintering, while the rest is utilized to make attractive items, brazing and…

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Information About Copper Powder

Copper powder is finely granulated copper that has numerous metallurgic capacities. The powder is less expensive than standard cast copper, so specialists can spare cash on supplies, and it regularly helps save materials in light of the fact that less copper will be required. Copper powder likewise can be made to have diverse densities if took care of by a powder metallurgist, significance the copper can be permeable and impregnated with oils or different metals, or it can be non-permeable like cast copper. Powdered copper is utilized as a combination,…

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Different Uses of Aluminum Powder

Aluminum powder is utilized as a part of the generation of numerous sorts of explosives and firecrackers. It is likewise utilized in the assembling of specific sorts of hardware. Powdered aluminum is incorporated in numerous paints and sealants. Certain items intended to convey electrical present, for example, sun based cells, are additionally regularly made utilizing aluminum powder. The most tremendous employments of aluminum powder exploit its capacity to create fantastically exothermic oxidation-lessening responses. Aluminum can be blended with a metal oxide, and the ensuing powder will smolder splendidly and discharge…

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Global Warming 

Avoidable Global Warming Causes

Researchers have invested decades evaluating what is creating an Earth-wide temperature boost. They’ve taken a gander at the characteristic cycles and occasions that are known to impact atmosphere. Be that as it may the sum and example of warming that is been measured can’t be clarified by these elements alone. The best way to clarify the example is to incorporate the impact of nursery gasses (Ghgs) emitted by people. To unite this data, the United Nations shaped a gathering of researchers called the Intergovernmental Panel on Climate Change, or IPCC….

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Science 

Important Features of Mercury

Mercury is a little planet, with an orbital width around a third of our own, found give or take two and 75% light minutes from the Sun. It is approximately 1/twentieth the Earth’s mass and volume, with a surface temperature of -292 to 806 °f (−180 to 430 °c), with the highs at Mercurian high twelve and the lows in holes close to the posts. It is made up of 70% metallic material and 30% silicate material, with a moderately expansive center made up of liquid iron. Regardless of its…

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