The shelves shall be painted. This kind of spraying treatment, also known as electrostatic powder spraying treatment. That is to say, after the pre-treatment, the powder is uniformly adhered to the metal surface by electrostatic adsorption of powder coating on the metal surface, and then the powder is melted and baked hard by high temperature to form a coating film, which insulates the metal from air contact, prevents oxidation and achieves the function of rust prevention. Moreover, this kind of powder has various colors, the effect of spraying is bright and beautiful, beautiful and smooth, which is the most widely used antirust technology in metal surface treatment. Spray treatment has many advantages.

　　1、防锈效果好，如果下足工夫与成本，做完全套工序流程，货架金属表面做这种喷涂处理，使用寿命可以长达八年十年之久。当然有些便宜的货架，只做酸冼去污后，直接烘干喷涂的，这样只先做一下处理，虽然节省成本，但使用三几年就慢慢开始生锈 了。

　　1. The rust proof effect is good. If enough work and cost are done, the whole process flow is completed, and the metal surface of the shelf is treated with this spray, the service life can be as long as eight years and ten years. Of course, some cheap shelves are dried and sprayed directly after acid washing and decontamination. In this way, we only focus on the treatment first. Although we can save costs, they start to rust after three years of use.

　　2、耐磨，采用这种喷涂处理，硬度（耐磨性）达到GB6739-86标准中2H。

　　2. Wear resistance, with this spray treatment, the hardness (wear resistance) reaches 2h in gb6739-86 standard.

　　3、颜色多样化，可以选择几十种种通用标准常规颜色。货架展示架因为有颜色的选择，才更显绚丽。缺点是不能太阳直接照射，在水淋热晒环镜中使用，表面涂层容易老化变色，导致生锈 ，而且一般只适宜在室内使用，而且要尽量不要让太阳照射。恒固货架产品经酸冼-除油-脱脂-磷化后，货架表面处理采用热固型环氧树脂粉末静电喷涂工艺，能达到以下几点技术要求：

　　3. Color diversity, you can choose dozens of general standard conventional colors. Shelves display shelves because of the choice of color, it is more gorgeous. The disadvantage is that it can't be directly exposed to the sun. When it is used in the water drenching and heat drying ring mirror, the surface coating is easy to age and change color, which leads to rust. Generally, it is only suitable for indoor use, and it should not be exposed to the sun as much as possible. After acid cleaning, degreasing, degreasing and phosphating, the surface treatment of the shelf adopts the electrostatic spraying process of thermosetting epoxy resin powder, which can meet the following technical requirements:

　　1.涂膜厚度大于60um,硬度2H，其质量均按GB9286标准进行。2.附着力达到GB92865-88标准中1级。3.热固型环氧聚脂型粉末涂料，涂装工艺要求在涂装线上作业，保证涂层表面丰满平滑，无明显色差桔皮等现象。4.耐腐蚀性（盐雾试验）GB1771-91>500小时。5.硬度（耐磨性）达到GB6739-86标准中2H。6.弯曲试验2mm条件下合格，耐冲击力大于400N/cm。恒固货架，质量保证，出口品质。

　　1. The film thickness is greater than 60um, the hardness is 2h, and its quality is in accordance with gb9286 standard. 2. The adhesion reaches level 1 of gb92865-88. 3. For the thermosetting epoxy polyester powder coating, the coating process requires to work on the coating line to ensure that the coating surface is full and smooth without obvious color difference, orange peel, etc. 4. Corrosion resistance (salt spray test) gb1771-91 > 500 hours. 5. The hardness (wear resistance) shall reach 2h in gb6739-86 standard. 6. The bending test is qualified under the condition of 2mm, and the impact resistance is greater than 400N / cm. Henggu shelf, quality assurance, export quality.