Guangzhou Yihua Plastic Products Co., Ltd.

Guangzhou Yihua Plastic Products Co., Ltd.

Production of bottle embryo manufacturers: How does PET bottle blank formation? What are the quality defects?
Author: Guangzhou Yihua Plastic Products Co., Ltd.
The production of bottle embryo manufacturers said that the molding elements of PET bottle

blank mainly include plastic processing, the selection of injection molding machines,

molds and port design. Only by dealing with these elements can high -quality products be produced.

But sometimes there are some quality defects, such as the yellowing of the bottle embryo and the large

rate of wall thickness. It needs to be discovered and resolved in time to avoid affecting its normal use.

The production of bottle embryo manufacturers will introduce the elements and common quality defects of PET plastic bottles.
Production of bottle embryo manufacturers: The elements of PET bottle blanking are:
1. Plastic treatment
The production of bottle embryo manufacturers said that because PET macromolecules contain fat

groups and have certain hydrophilicity, the granules are more sensitive to water at high temperatures.

When the moisture content exceeds the limit, PET decreases the molecular weight during the processing

process, and the product changes color. Generally, the ratio of pet bottle recycling materials does not

exceed 25%, and the recycling material should be completely dry.
2. Selection of injection molding machine
Due to the short period of stability and high melting point after PET melting point, there are many temperature

control segments. When plasticizing, the actual weight of the product (including nozzle material) should

not be smaller than 2/3 of the machine injection.
3. Reserve time
Do not use too long stay time to prevent the molecular weight from declining and try to avoid temperatures

above 300. If the shutdown time is less than 15 minutes, it only needs to be air -fired; if it exceeds

15 minutes, clean it with viscosity PE and reduce the temperature of the tube to the PE temperature until it is restarted.
4. Design of mold and mouth
PET bottle blank is generally made of hotline mold. There is a heat insulation board between the mold

and template of the injection molding machine. Its thickness is about 12mm, and the insulation board must

be able to withstand high pressure. The exhaust must be sufficient to avoid local overheating or cracking,

but the depth of its exhaust port generally should not exceed 0.03mm, otherwise it is easy to cause flying edges.

Production of bottle embryo manufacturers: What are the common quality defects of PET bottle?

1.AA value is too high
The quality of the raw materials has the quality of the raw material before entering the warehouse,

and the drying effect is not easy to check the operation of the dryer (such as dew point, drying

temperature/time), and the heating temperature of the tube is too high to reduce the temperature

as much as possible without the quality.
2. Yellow bottle embryo
Excessive drying time/excessive temperature is discharged over drying raw materials,

and re -drove drying. The temperature of the tube is too high to cool down (generally the temperature

of the bottle blank increases by 2 ~ 5) to the normal temperature, and the mold temperature is

too high to cool to the appropriate temperature (275 ~ 280).
3. The rate of wall thickness is too large.
The production of bottle embryo manufacturers said that the screw temperature is too high to

reduce the screw temperature and the screw back pressure adjustment screw back pressure

to the appropriate pressure. The injection speed is too fast and appropriately reduces the

injection speed (the injection is generally 3.5 ~ 4s). The temperature of the mold cooling water

is too high to check the cooling circulating water temperature (9 ~ 112).
4. Surface scratches (blank/thread)
The mold is stuck and cleaned the mold, the mold is damaged and replaced with damaged parts

or maintenance, removed the pipe and damaged the damaged pipe or maintenance. The position/pressure

on the lip mouth is too high to adjust the position/pressure to the appropriate state.

■ Company profile:

Guangzhou Yihua Plastic Products Co., Ltd. was established in 2010. It is located in

Zhongluotan Town, Baiyun District, Guangzhou City, Guangdong Province. The company

covers an area of 8,000 square meters. It is a modern standardized plant. PET bottle embryo

manufacturers, products are dumping across the country. The main products are now used

for packaging of cosmetics bottles, food bottles, beverage bottles, and pharmaceutical bottles.
The company has a group of outstanding professional technicians and more than 30 domestic

advanced PET bottle embryos. The injection molding machine is equipped with automated

equipment, which can make a variety of PET bottle embryos in all directions to meet the needs

of different customers.After ten years of rapid development, the company has always

adhered to the purpose of "quality first,

reputation first", comprehensive scientific management concepts, strong technical

power and advanced machinery and equipment to create a number of high -quality products.

The company will be indomitable and continuously developing, making technology be more

improving, products are more complete and excellent, and the service is better and thoughtful.

​

Through teamwork, it can create a working atmosphere, so that each player has a sense

of belonging and helps improve the enthusiasm and efficiency of team members. As the

so -called men and women are not tired, let's not talk about the matching of men and women

first. Even if men and men cooperate, they will not have a sense of loneliness because a

person is fighting. Because the team has target consistency, it has a overall sense of belonging.

It is this sense of belong that makes each member feel that they are working hard for the

team while achieving their goals for themselves. At the same time, there are other members

who work together for this goal, so as to stimulate a stronger working motivation. The

enthusiasm of the contribution is also born with myself, so that the work efficiency is higher

than that of individuals.

1. Reception of customers and visiting customers' reception and access to

customers is the main way for enterprises and customers to contact directly. It

can understand the requirements and opinions of customers in time. It is one

of the main channels for collecting technology and economic information. The

reception customers mainly include the processing of visiting,

letters, and calls. Visit customers are the company's visits to customers every

year and targeted organizations every year. The access method can be combined

with imitation, the combination of sales, and the combination of visits.

2. Consultation service consulting service refers to the use of various professional

knowledge to provide users with intellectual services, including business consulting

services and technical consulting services. Business consulting services are based on

the various requirements of customers when buying products, introduce the various

business conditions of the company, answer various questions raised by users, and

help buy. Technical consulting services refer to the quality and performance of the

product in detail, the main technical parameters, and provide customers with samples,

directory, instructions, and technical and economic indicators such as production

processes, detection methods and energy consumption.

3. Quality "three packages" service mainly refers to product quality problems under the prescribed

conditions and insured periods. The enterprise is responsible for warranty, replacement, and retreat

for users. If necessary Essence Enterprises should specifically stipulate the scope of three packages,

insured period, and clear division of responsibilities with the spirit of "quality first"

and the spirit of responsibility for users.