Non-stick spraying belongs to the category of high temperature spraying. Applicable to cake plate, non-stick pot, rice cooker inner gallbladder, etc.
The main spraying can be divided into two types: internal spraying and external spraying.
Process flow:
Upper parts – sandblasting – rotating parts – water washing, sand removal – alkali washing – water washing – pure water washing – blowing – drying – cooling – Next part
Internal coating process:
Topcoat – automatic dust removal – preheating – spraying primer – surface drying – cooling – spraying top coat – surface drying – turning parts-
Upper High Temperature Line-Low Temperature Volatilization-High Temperature Sintering-Cooling-Lower Parts
External coating process:
Top – Automatic Dust Removal – Preheating – Primer Spray – Transformer – Top High Temperature Line – Low Temperature Volatilization-
High Temperature Sintering-Cooling-Lower Parts
The above processes are basically the same and can be adjusted proper and simply.
Most of the non-stick paint automatic spraying lines require that the qualified rate of customers’products reach more than 95%. In view of this problem, our company has developed a stable conveying system and a perfect 10,000-grade dust-free air supply System together with customers after accumulating and summarizing the experience of several production lines, so as to maximize the qualified rate. The automatic line conveyor chain is made of aluminium alloy machine and knurled, with a bearing in the middle position. When the fixture is The assembled on the automatic conveyor chain, the bearing is clamped by the side rail on both sides of the bearing position to prevent the shaking of the products and the two sides of the chain, especially for large products and heavy products, this side rail is The 10,000-grade air supply system is developed by our company, which includes quick-disassembly air supply cabinet, all-aluminium alloy cabinet, bolt link, pressure The internal oversight system is the primary, medium and sub-high efficiency filter, and the patio filter is the high efficiency filter. Thus, the overall effect can not achieve 1000-level effect in the Static state. The whole filter system can be disassembled and fast disassembled. Easy to replace the filter system.
There are many kinds of spraying methods for non-stick automatic spraying: fixed gun automatic spraying, reciprocating tracking spraying, robot spraying, etc. Among them, the robot spraying is that the line speed should not be too fast, 1-3 m/min is more appropriate, too fast, the robot can not keep up with, after all, the spraying efficiency is limited. Fixed gun automatic spraying for paint waste is more, high efficiency, line speed can reach about 5 meters per minute. Reciprocating payback tracking can be planar reciprocating tracking or fixed gun reciprocating tracking. In most cases, we choose suitable spraying methods according to customer productivity requirements and product complexity. One group of tracking is not enough. We add another group of spraying systems. Is more flexible than fixed gun. Production efficiency is guaranteed, and product quality is guaranteed.
The product drying forms are also diversified: medium wave infrared heating pipe, far infrared radiation heating, natural gas heating, etc. In order to keep the temperature curve smooth and stable, if necessary, the furnace can be equipped with self-rotating device and The automatic line dryer is equipped with an overhaul door every other section. The overhaul door should be set in opposite mode and dislocation. It can be made into a fully open door for easy overhaul. It should be pointed out that the High temperature sintering furnace should be separated from the automatic spraying line, and the high temperature sintering line can be divided into two sections, one is 180-220 degrees, the other is 220-450 degrees. In order to ensure the stability of the furnace Temperature curve, it is necessary to make the furnace body as short as possible and strengthen the humidity around the furnace body. Lifting doors are arranged at both ends of the entry ports to prevent heat ove Rflow.