Sprayer quality appraisal

spraying machine is a special coating equipment using spraying technology. The principle is to use the air flow to push the reversing device to change direction, so that the piston of the pneumatic motor makes a stable and continuous reciprocating motion, thereby pressurizing the inhaled paint. The paint is transported to the spray gun of the sprayer through a high-pressure hose. The spray gun atomizes the paint and sprays it onto the surface of the object to be painted to form a film layer.
spraying machine can mainly spray cement mortar, dry powder mortar, insulation mortar, putty powder, paint, latex paint, real stone paint, waterproof materials, fireproof materials, heat insulation materials, sound-absorbing materials and other water-soluble materials.
Zhongke Testing and Appraisal Institute can provide quality appraisal services for metal spraying equipment, wood spraying equipment, plastic product spraying equipment and other spraying machines, and make accurate appraisals in aspects such as product design analysis, product load analysis and product quality analysis.

is classified by spraying surface: metal spraying equipment, wood spraying equipment, plastic product spraying equipment.
is classified by convenience: automatic spraying equipment, manual spraying equipment.
is classified according to the nature of the spray material: powder spray equipment and paint spray equipment. Powder spraying equipment is commonly used electrostatic powder spraying equipment. The convenience of operation of powder spraying equipment is divided into manual spraying equipment and automatic spraying equipment.

JB/T 13280-2017 Pneumatic spray gun
JB/T 9182-2014 Painting robot General technical conditions
QB/T 4720-2014 Shoemaking machinery Explosion-proof spray painting table
AQ/T 5215-2013 Spray booth safety performance testing method
JB/T 10413-2005 Spray booth
QB 2496-2000 Thermos bottle spray paint workshop safety technical regulations

An engineering technology company provided a batch of two 5000L zinc-rich paint spraying machines to a chemical coating company. Later, the equipment was found to have quality problems such as not meeting the technical parameters stipulated in the technical agreement, so it appealed to the court.
Our company was entrusted by the court to undertake the quality analysis of the "zinc-rich paint spraying machine equipment" involved in this case.
identification and analysis results: The
quality analysis expert group discussed and comprehensively technical analyzed the relevant information, on-site investigation and inspection data, and inspection and testing data of the "zinc-rich paint spraying machine equipment" involved in the case, and made the following quality analysis opinions:
The entire kettle body system is installed on a two-story steel structure platform. The kettle body system and the steel structure platform are both elastomers, and there are conditions for resonance. Moreover, the stirring shaft is long and overhangs and rotates at a high speed in the kettle. As the stirring shaft moves up and down, vibration is prone to occur, which will cause the dispersion disk at the lower end of the mixing shaft to swing significantly; the local fan-shaped surface of the dispersion disk is deformed; the power parameters on the motor nameplate comply with the agreement.