1. High pressure-forming sands. The main characteristic of high pressure-forming sands is their high strength. strength), high permeability, high clay content and low moisture, in addition to the control of wet pressure, thermal humid latency, tight rates, fragmentation index and effective soil expansion and efficient coal powder
 of which, ww latting strength (strength) indicates the strength of the sand at the modulation time, and ensures that the crumbs at the modulus do not break: Thermal humid latitude represents the strength of the water condensation area after the sand is poured, and the casting is less likely to produce defects such as sands when thermal humid latitude is high. The gear reducer motor 1 and R series of coaxal slash gears are manufactured in conjunction with international technology requirements and have a high technological content, space savings, reliable durability, overload capacity and high power of 132 KW; 3 - low energy consumption, high performance, and above 95% speed-reducing machines); 4, low vibration, low noise and high energy efficiency; 5, selection of high-quality exercise steel material, steel cast iron box, high-frequency heat treatment of gear surfaces; 6, precision processing to ensure axle parallelity and positioning bearing requirements, with a reduced motor of various types, combined with a combination of motor and electrical integration, which fully ensures the quality of the product's use. The tight-real rate reflects to some extent the movement of sands in tight real time. The fragmentation index is a combination of test sample strength and deformation, with a high-descriptive fractal index. Controls are also required to ensure the performance of the sand process(s) control) Effective excretion of soil and efficient coal powder, for which the weights of old sands should be regularly surveyed in order to determine the additions to the excretion of soil and coal powder in a mixed sand.
2. Templates. Templates for high-pressure configurations shall be of sufficient strength (strength) and styl, which also requires good grinding. cast iron) or steel-formulated, commonly used material () Material) as grey iron, steel, copper or aluminium () Al) Alloy () alloy) (660°C) etc.
Appearance surface plating chromium Chromium)（ Chrome plated) is an effective measure to increase wear and tear (means problem-oriented solutions).
 3. Spraying sand pressure.Planetary gear decelerator.In contrast to other speed-reducing machines, planetary speed-reducing machines are very rigid, highly accurate (within 1 minute for a single stage), highly motor-efficient (with a single level of 97-98%), high twirl/weight ratio, life-long exemption, etc. The pressure on air is typically 0.21 0.3 MPa when sand is applied. Excessive sand-release pressure accelerates the wear of templates, sandboxes, or styling rooms, and makes sand formation less pressing.
 4. Pressure-to-pressure. The pressure-to-pressure increases, and the sand-to-cressure-to-reality increases. The change in the pressure-to-reality is more apparent when the pressure is lower than the pressure. difficult (i) Power (i.e., the amount of work done by the object in unit time) consumption (i.e., the amount of work done by the object in unit time) consume Addition, large machine structure and difficulties in falling, so pressure-forming is generally controlled in the 0.7l.SMPa range (fàn wéi).
 5. High-pressure formations should enhance sand-type ventilation, which typically includes vents and vents. The vents should be located on the top of the cavity, the dead corner, the top of the trough and the core, and the vents should be placed on a semi-brand, from the cavity to the edge of the cavity.
 6. Preventing a vacuum in the mammoth.Hard-noodle gear brakes.The efficiency of the conveyance is one of the most efficient in all forms of transmission, which is more efficient than that of the snail. The efficiency of the gear-reducing machine is determined mainly by the friction of gears and bearings. mold cavity There's a certain vacuum between them, leading to... cause) The sand is partially damaged. This should be done by ensuring that the sand has good aerobics, by installing a vent plug in the deep dent of the sample, or even by using a conductor to compress the air; it is pressurizing the model;
 7. When retrofitting with a vertical compartment-free projectile, care shall be taken in the design of the work. attention) The following special issues (...) Emerson):
    
　　(1) The height of the counterpressure template shall generally be limited (limit) On the left side of the line in front of the saloon, it is absolutely not allowed to swing the curve through the back-pressure template (Curve) range in order to prevent collisions during a compression. The specific value of the swing curve of the antipressure template is determined by the type of machine used.
    
　　(2) Sand core fixed () fixed) Method(s) by which a position can be linked to the hanging cavity () mold cavity) or on the base of the core, the latter form applies to larger sand cores. The co-size of the positioning bond is 0.0. 2~0. 3mm, so that the suspension is solid. To adapt to the actions of the lower core mechanics, the template with the location of the core must be used as a compact template.