Surface treatment of sheet metal stampings, said general chemical surface treatment. Process:
Pre-degreasing degreasing cold hot water washing pickling in cold water and cold water surface adjustment phosphate cold water hot water pure water and dried The above process may also make appropriate adjustments based on oil, rust sheet metal stampings situation, with or without pickling process, with or without pre-degreasing. The degreasing and phosphate chemical treatment process is a key step, the two processes directly affect the quality of the workpiece quality chemically treated and rust coating. Relevant process parameters and related auxiliary equipment also affect the quality of surface __ reason can not be ignored. 1.2 Coating Process As the project a wide range of machinery, specifications, machine weight, large parts, the general approach to spray paint. Spray tool air spray gun, airless spray gun, air-assisted spray gun and portable electrostatic spray gun. Low air spray gun efficiency (about 30%), high-pressure airless spray gun paint waste, both common feature is more serious environmental pollution, it has been replaced by air-assisted spray gun and portable electrostatic spray gun and being. As the world's first mechanical engineering company --- Caterpillar (CAT) company on the use of air-assisted spray gun on the hood, such as sheet metal cover portable electrostatic spray gun is used. Engineering machinery coating equipment generally use more advanced water rotary spray booth. Small parts can also be used with or without a pump spray booth curtain spray booth, the former has advanced performance, the latter affordable, convenient and practical. Due to heavy construction machinery and parts machine, heat capacity, so its anti-rust coating drying, the general uniform baking hot air convection drying method. Heat can be adapted to local conditions, the choice of steam, electricity, light diesel oil, natural gas and liquefied petroleum gas. Two major painting equipment 2.1 through shot blasting chamber By shot-blasting chamber consists of the cleaning chamber body, shot blasting, projectile circulatory system, ventilation and dust removal system, the bottom of the foundation and electrical control systems. Sizes can be designed according to different non-standard specifications of the workpiece, the device can also be used stereotypes. By shot-blasting room for construction machinery structure, surface cleaning malleable pieces, strengthen, and thus obtain a certain roughness and smooth surface, increasing the coating adhesion, improve workpiece anti-corrosion effect. When the workpiece into the blasting chamber by a motor driven centrifugal blast wheel speed projectiles thrown, the strong impact of the workpiece surface rust, scale. Workpiece uniform motion or rotation after several clean, surface quality can be achieved grade Sa2 ~ Sa2. 5 standards.
hot air drying room pallet jack stacker
Circulating hot air convection drying method is the way, its biggest advantage is uniform baking, especially for larger heat capacity of construction machinery parts. Heating steam heat, electricity, light diesel oil, natural gas, liquefied petroleum gas. Hand fixed lift table Under the conditions permit, the preferred liquefied petroleum gas. This is a clean and efficient energy, the biggest advantage is the cost of a production run of only 35% to 40% of electricity costs.
2.4 delivery system
For engineering machinery components (structure), the adoption of self-electric hoist is an effective choice.
Hoist by their own delivery system gantry column, the carrier rails, sliding conductor rail and collector, central loading vehicles, electric hoist, PC control of the control cabinet.
The system combines mechanical, electronic, computer, automatic control of the four technical essence, focused on the storage, transportation, handling, technical operation of the four logistics chain. Not only to transport the workpiece continuous or step, manual Platform Stackers especially where there is a convenient place as manual preset program, the next piece at the interior painting can be automatically or manually free lift.
in addition to the role played in the pallet jack stacker load state
Pigeon is a professional ring chain hoists, lever hoists, cranes and other lifting equipment line tackle manufacturers, the following are the details related news crane brake functions.
Actuator is what we usually say, " gate" , is part of the crane and manual hoists. Crane If there is no " brake" the consequences can be imagined, brake exactly what we do not know the function?
Run institutions brake mounted on the crane, luffing rotating pallet jack stacker bodies and institutions, these institutions can accurately and reliably stop at the desired position. If installed in the lifting mechanism, in addition to the role played in the braking load state, but also to adjust the rate of decline of the object.
Press brake action can be divided into: closed and open points; according to the structure can be divided into:-block and belt; press drive can be divided into: mechanical transmission, hydraulic and electric types. Generally, normally closed two-block brake shoe crane mostly common. The manual hoist generally use a one-way ratchet friction brakes, self braking under load, more convenient.
In addition, the block frame factory pallet jack stacker after factory two years before the legal unit to be sent back for inspection
1 electric forklift trucks operating in the important parts of goods slipped how should I do ? Security incidents is shutter door frame , in order to fully ensure the safety of operating personnel , anti-falling door frame shutter technology research and experiment , but also there factory audit , etc. are very strict. All-electric pallet jack stacker in the factory before the test units of its audit , etc. , each comes with a professional inspection report , but also for the assembly to full electric stacker car do professional work of the rated load test , and being used in electric forklift equipment must once every three months fall within the experimental job.

2 In addition, the block frame factory after factory two years before the legal unit to be sent back for inspection , after checking once a year , because they will not pay attention to sow the seeds of security risks. So as this special equipment must be professional staff for routine inspection and maintenance. Do not take chances thousands into the door frame of the shutter without any problems , is to represent the shutter door frame on the chances there are security issues. But if it is to a security incident , it is the rude awakening .

3 Some storage companies will fall protection is blocked as long as no pallet jack stacker damage to the aircraft is qualified , but only during the test and the quality of internal inspection of the project in order to conclude that visual in their daily work is good or bad can not be determined . Only foolproof through inspection and testing skills.