A brief introduction to the new process of Unibody injection molding parts on the integration of PC injection molding mobile phone back cover and middle frame

The two fields of new materials and new processes are changing with each passing day, and the changes will be intensifi.

Figure OPPO realme 3 one-piece body plastic shell from the network

The advantages of PC injection-molded back cover and middle frame integrated body are:

The back cover of PC injection molding itself has high transparency and high gloss;

The product has thin wall and small deformation after injection molding, and has excellent optical performance;

The clamping waist line of the integrated fuselage makes the whole more smooth,

Strong drop resistance, durable and low cost;

Create a light, thin and high-quality produ.

With the innovation and breakthrough of new processes such as IMT, ICM, UNIBODY, e.

Figure Samsung A40 S from the Internet

However, due to its soft texture, easy scratching, and weak anti-drop and wear resistance, the plastic shell has obvious weakness.

In the case that the surface of the back cover of the mobile phone is relatively flat, the hardening process itself has a big probl.

First, the problem of spray coating and hardening production equipment

In order to improve the effect of hardening and improve the yield rate, Nuozheng has started to lay out the 5G market nearly five years ago on the basis of professional surface treatment equipment for more than 20 years, helping the development of China's 5G business, focusing on mobile phone plastics For the research and development and production of hardening treatment of cover plates, the first generation and the second generation of coating and hardening production lines have been developed successive.

>>>> The first generation of spray coating equipment

It is suitable for PC+PMMA plate and mobile phone back cover plane or 5D spray coating surface hardening products

>>>> The second generation of spray coating equipment

The second-generation spray coating equipment is mainly used in PC+PMMA mobile phone back cover, and PC injection parts 5D, 3D products, automotive center control panels, interior parts without special-shaped parts surface hardening, surface AF, AG treatme.

The first- and second-generation hardening equipment has been widely used in the industry and has been highly recognized and praised by users such as OEMs and foundri.

>>>> The third generation of spray coating production line

Under the development trend of the integration of mobile phone plastic back cover and middle frame, Nuozheng independently developed the third-generation coating and hardening production line, which is specially used to solve the hardening treatment of PC injection molding mobile phone back cover and middle frame integrated bo.

Hardening the back cover of PC injection molded mobile phone has always been a difficult point since its developme.

Introduction of Nuozheng spray coating equipment

>>>>Design of the whole process flow coating system

Standardized process and reasonable overall layout

Fully automated unmanned workshop (except for the loading and unloading area), which can save 26 people/day

Compatibility of production line: HC, AF and AG liquid medicine; composite board, PC injection parts and 400*500MM large board; equipment can be upgraded

>>>>Advantages of mass production of composite panels and PC injection molded parts

Fast line construction, which can assist customers to put into production quickly

        The composite board and PC injection parts have mass production experience, and the yield rate is fa.

        Can save a lot of debugging and proofing time

        Stable product quality and fast variety switching

        >>>> Introduction to the improvement of the coating line

        1 Process details

        Increase the independent dehydration slow pull-out tank process section, water stains can be better handled;

        The original normal temperature water blowing section is changed to hot air blowing water, which can more effectively remove the residual water droplets on the surface of the product;

        2 Mechanical details

        The double-sided flow adjustment buffer chamber is added in the coating area, which is beneficial to the accuracy of flow adjustment;

        The UV curing power increases, the light intensity effect is better, and the pressure is larg.

        3 Security and Humanization

        Increase explosion-proof, fire-proof and dust-proof monitoring systems and protective measures in dangerous areas;

        Improve the height of the upper and lower parts area, you can sit and operate to reduce the work intensi.

        The advantages of Unibody injection molding integration have unlimited prospects in the futu.

        The first year of 5G has come, and all industries and thousands of industries are dedicated to their diligence; innovation and development work hand in hand, interconnection and mutual benef.