Details of flotation agent addition should be noted. The correct addition of flotation reagent has four aspects: the type of agent, the order of addition, the amount added, the place and method of addition. In principle, the problems of these four methods must be determined through flotation experimental research, but experienced mineral processing professionals and good flotation workers in the actual production process are based on experience. (1) Types of medicaments Flotation reagents are classified into collectors , foaming agents, conditioners, and inhibitors. Under normal circumstances, first add a modifier, plus inhibitors and foaming agents, collectors. The collector is used to capture the mineral of interest, the foaming agent is used to produce a foam layer capable of floating minerals, the modifier is used to adjust the pH of the pulp, and the activator is used to activate the mineral of interest to enhance its floatability. Inhibitors are used to inhibit certain undesirable minerals in the slurry. (II) was added to adjust the location and manner of addition, inhibitors and collector portion (e.g., coal oil) was added in a ball mill so as to cause a suitable flotation environment as soon as possible. The collector and foaming agent are added to the first mixing tank of the flotation. If the flotation operation has two mixing tanks, the activator should be added to the first mixing tank, and the collector and foaming agent should be added to the second mixing tank. (such as zinc flotation operation) (III) adding water-soluble agents such as agents embodiment xanthate, baiyao, aerofloat amine, sodium silicate, sodium carbonate, copper sulfate, etc. formulated as aqueous sodium sulfide was added (concentration ranging from 2% to 10%). Some insoluble drugs can be directly added such as 2# oil and No. 31 black medicine, oleic acid and the like. Some must be dissolved in a solvent beforehand. It is then formulated into an aqueous solution, such as an amine collector. Lime can be formulated into lime milk, added, or directly added to the ball mill and mixing tank in the form of dry powder. Usually, the collector, foaming agent and stirring can be 1-2 minutes. Some drugs and, stirring takes a long time, such as for inhibition of weight potassium chromium copper lead lead separation. Sand casting parts could serve in many industries including hydraulics, automotive, commercial truck, rail trains, logistics, agricultural machinery...etc. The castings mainly are used as gearbox housing, pressure pump housing, engine blocks, cylinder heads, transmission box, bracket, Wheel Hub, connecting rods, manifolds...etc.
✔ Lower Cost due to its cheap and recyclable mold materials and simple production equipment.
✔ Wide range of unit weight from 0.10 kg to 500 kgs or even bigger.
✔ Various Structure from simple type to complex type.
✔ Suitable for production requirements of various quantity
✔ Diverse metals could be cast by sand casting including ferrous metals and non-ferrous metals
✔ Long lifespan of the mold
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Advantages of Sand Casting
February 13, 2024