The technical operating conditions for granulation heap leaching are controlled as follows:
1. Number of binders   As a material for the binder, cement and lime are currently used, and the former is good, and the dosage is about 5 kg / ton. The binder should be added to the relatively dry ore, mixed with the ore and then wetted. When the raw material to be piled is tailings, the binder is preferably half of cement and lime.
2. The amount of water added to the mixture of raw materials and binder   In general, the wet material after granulation is preferably formed into a block when pressed in the hand. And the particle size depends on how much clay content ore moisture, when raw ores, the moisture content is 8 to 16% of the raw material, when the material is tailings, water content is 18 to 22% of the starting material.
3. Curing time   The curing time required for the ore to form a silicate bond is an important factor in determining the strength of the agglomerate. The curing time of the raw ore raw material is 8 hours, and the curing time of the tailings raw material is 24 hours.
The domestic current situation of the die-casting mould
Die Casting Mould industry has developed rapidly in our country, the total output growth significantly, domestic die casting mold production after the United States, has become the second in the world, become the veritable die-casting superpower. It can have such achievement because of our country with unique broad market advantages and relatively cheap labor force. Depend on very obvious price in the international trade market, we produced the die casting mould which occupies a bigger superiority, according to the situation, in the future Chinese die casting industry development prospects are very broad.
The designing of die
casting tooling
1, According to the materials, shape and precision product, analyze technology,
decide of the process.
2, Confirm the location of product in the mold cavity. Analyze parting surface,
overflow system and the gating system.
3, Design the various activities of the core are assembled and fixed method.
4, Design the core-pulling distance and force.
5, Design the ejection device.
6, Confirm the die casting machine, design the mould base and the cooling
system.
7, Checking the mould size and die casting machine, drawing the process
flowchart and component of die casting mold.
8, Design is complete.
Die-casting mould making flowchart
Aluminum injection mould material and materials and its properties
Material of aluminum die casting mould: H13, ASSAB DIEVAR, SKD6;
Mould base: #45 steel, standard mould base (LKM);
Hardness after treatment: RHC 48~52;
Standard Configuration: Cooling system;
Tolerance: 0.1mm;
Machining equipment: CNC gantry milling machine, middle-speed WEDM machine, slow-feeding EDM, die spotting machine;
Mould life: 50000 shots ~ 100000 shots;
Lead time of die casting mould: 40 days-60 days.
What is the Moldflow analysis, this conception derived fromtaiwan. it's a precess through the computer for injection molding simulation by data simulate software, and get data result. Then assess the feasibilty of the mold program through these results to perfect mold and production designation.The common software for plastic mold such as moldflow, moldex 3D and so on. And the common software for Aluminum Die Casting Parts such as PROCAST, FLOW 3D and so on.
The conventional materials of die casting core, insert, slider
Production of die casting mould and QC control
Die Casting Mould
Aluminum Die Casting Mould, Zinc Die Casting Mould, Die Casting Mould, Die Cast Mold
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