Oven in cosmetics packaging production molding process

The stand or fall of production also have great influence to process adjustment, the condition of constant to maintain process stability and the stability of the products. PET cosmetics packaging production forming generally at room temperature and low humidity conditions is preferred.

tubes in the oven to the layout of the top-down generally show & quot; Area & quot; Glyph, more than two head, less in the middle. Oven heat by the number of tubes, the overall temperature setting, oven heating power and paragraphs than common control. The tubes to combine to adjust the cosmetics packaging production in advance.

even if using the same equipment production the same specifications of the cosmetics packaging production, due to differences in PET material performance, the required pressure are also different. Glass fiber enhanced PET materials, smaller preloading can increase the cosmetics packaging production at the bottom of the right orientation; Other materials or molding process is not appropriate cosmetics packaging production base, near note there are a lot of stress concentration is not easy to fade, if plastic, often in the note points out or in stress tests from the injection point blowout, leakage. Conditions according to the orientation, at this time to remove 2 - such as shown in the tubes 3 to note above, to make note points or heating, provide enough quantity of heat, to promote its rapid orientation.

the important factors influencing the PET plastic cosmetics packaging production process there are cosmetics packaging production base, heating, and mould, etc.

adjustment of PET plastic cosmetics packaging production process, was conducted for the corresponding material, if the material is poor, the requirement of process is very strict, even qualified cosmetics packaging production is difficult to model to the child.

cosmetics packaging production of billet heating are done by the heating oven, the temperature by artificial setting, automatic adjustment. In the oven by the far infrared lamp emit far infrared ray radiation heating, cosmetics packaging production carried out by the fan at the bottom of the oven heat circulation, make the evenness of temperature in the oven. Cosmetics packaging production billet forward movement and rotation in the oven, the cosmetics packaging production blank wall heated evenly.

to have the billet heating secondary use of cosmetics packaging production or storage time excessive amounts of cosmetics packaging production base, arithmetic effect due to the temperature, the molding process which is similar, compared with the normal cosmetics packaging production base, it requires less heat, preloading can also be reduced.

auxiliary refers to maintain the mould temperature equipment. Mold temperature to play an important role in maintaining the stability of the products. General cosmetics packaging production high body temperature, the lower temperature in the cosmetics packaging production. For cold cosmetics packaging production, because of its cooling effect determines the degree of orientation, at the bottom of the temperature control at 5 - 8 ℃ is preferred; While hot temperature at the bottom of cosmetics packaging production is much higher.

along with the advance of science and technology and the production scale, PET cosmetics packaging production machine more and more high degree of automation, production efficiency is becoming more and more high. Continuously improve equipment production ability, by the former production per hour thousands of cosmetics packaging production development to the present production of tens of thousands of cosmetics packaging production per hour. Operate by manual push button in the past to now also full computer control, greatly reduced the difficulty of the process operation, increase the stability of the process.

cosmetics packaging production machine and the preparation of plastic cosmetics packaging production oven relations, will first PET slice injection molding for cosmetics packaging production base, it requires that the secondary recycling material ratio cannot be too high ( Less than 5%) Number cannot exceed twice, and recycling and content and low viscosity can't ( The amount of 31000 - 50000, characteristic viscosity of 0. 78 - 0. 85立方厘米/ g) 。 Injection molding of cosmetics packaging production base to store more than 48 h before use. After heating unused cosmetics packaging production base, must be used to store more than 48 h can be reheated. Cosmetics packaging production of billet storage time should not exceed six months.