Mohammed Asif M et al studied the impact of heat input on tensile strength‚ toughness‚ micro hardness‚ micro structure and corrosion behavior of duplex stainless steel joints. Four parameters were varied by keeping speed as constant. The heating pressure of 30‚ 40‚ 50 MPa‚ heating time of 3‚ 4‚ 5 sec‚ upset pressure of 60‚ 70‚ 80 MPa‚ upset time of 2‚ 3‚ 4 sec were used to weld the joints. L9 orthogonal design concept was used. Results revealed that no intermetallic phases were formed. By increasing
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The shortage of natural sand makes the artificial sand necessary. For the production of artificial sand‚ Hongxing Machinery exports remind you that choosing a right sand production process for artificial sand is just like water for fish‚ which is of high efficiency. Currently‚ aggregate crushing plant requirements in ghanathere are two ways of sand making: wet type sand making technology and dry type sand making technology. So‚ which one can be selected according to individual circumstance? At first
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Activity 4 To solve the fracturing of the bracket we are going to change in dimensions make the bracket more compact and lighter which decrease the chance of fracture. And increasing the number of holes to 2 increases the stability of the cable and giving excess strength to the bracket. By using those dimensions below: Length: 250mm Width: 210mm Height: 125mm Thickness: 12mm Thickness of base: 10mm No. of mounting points: 4 No. of holding holes: 2 Diameter of the holes: 65mm each
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and are far more subject to breaking‚ especially if the drill is not held at a constant angle to the work piece. The proper drill bit selection can be categorized by the material composition of the workpiece being manufactured which determines its hardness and workability. High speed steel bits are commonly used to drill typical working metals‚ hardwood‚ and most other materials. HSS is a form of tool steel that runs at greater cutting speeds than carbon steel bits‚ and has largely replaced carbon
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Engineering Materials Week 3 5.1 Briefly explain the difference between self-diffusion and interdiffusion. Self-diffusion refers to movement of atoms within a pure material; interdiffusion refers to the movement of one or more kind of atoms in a heterogeneous system. 5.7 A sheet of steel 2.5mm thick has nitrogen atmospheres on both sides at 900C and is permitted to achieve a steady-state diffusion condition. The diffusion coefficient of nitrogen in steel at 900 C is 1.2 10^-10 m^2/s‚ and the diffusion
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------------------------------------------------- Alloy Steel is a metal alloy whose major component is iron‚ with carbon content between 0.02% and 2.14% by mass. An alloy is a metallic solid solution composed of two or more elements. Complete solid solution alloys give single solid phase microstructure‚ while partial solutions give two or more phases that may or may not be homogeneous in distribution‚ depending on thermal (heat treatment) history. Alloys usually have different properties from those
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Formulation of Lamotrigine Orodispersible Tablets by Using New Generation Superdisintegrants B.Ramu 1*‚ N.Ramakrishna 2‚ B.Shivashanker3 1‚3 K.V.K College Of Pharmacy ‚ Department Of Pharmaceutics‚JNTUH Hyderabad India. 2 Avanthi institute of pharmaceutical sciences‚department of pharmaceutics Bandameedi.ramu@gmail.com ABSTRACT In the present work‚ an attempt has been made to develop fast disintegrating tablets of Lamotrigine. New generation super
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Working Principle of the Sand Maker The materials falling to the Sand Making Machine are divided into two parts by the distributor‚ with one part getting into the high-speed rotating impellers through the distributor‚ which are accelerated quickly in the impellers‚ reaching 100 times the acceleration of gravity‚ and then cast at the speed of 60 to 70 m/s from the three distributed passageways of the impellers and impacted by the materials falling around the distributor. Then they are impacted together
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Introduction: The aquatic environment can be affected by both natural and anthropogenic events. These may include the addition of synthetic substances to the water or some physical or chemical change that alters the hydrological regime. Most organisms that live in a water-body are sensitive to environmental change‚ whether it is increased turbidity‚ chemical contamination or decreased dissolved oxygen caused by the introduction of sewage. These organisms may die‚ migrate‚ or they may reproduce
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b. Voter attitudes Nominal – democrat‚ republican‚ independent‚ other Ordinal – popularity of candidates Interval – Ratio – number of votes cast for each candidate c. Hardness of steel alloys Nominal – types of alloys Ordinal – The order of alloys in terms of hardness Interval – Rank/Scale in terms of hardness Ratio – Ratio of softer to harder alloys d. Preference for a particular common stock Nominal – industry and sector classifications of stock Ordinal – order of stock in
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