What does PE mean in the model

One and two floors add up, and there are indeed two kinds of PE

One is the version of the material, and those who play Bandai basically know that the board will indicate the material of the board, like pe, abs, ah

The other is the etching sheet, and the metal etching sheet is also called PE

What exactly is PE that experts say every day.

Polyethylene. PE plastic (polyethylene).

Product Name: Polyethylene

Specific gravity: grams of cubic centimeters.

Molding shrinkage:

Molding temperature: 140-220

Drying conditions: --

Material properties Corrosion resistance, excellent electrical insulation (especially high-frequency insulation), can be chlorinated, irradiation modification, can be reinforced with glass fiber. The melting point, rigidity, hardness and strength of low-pressure polyethylene are high, the water absorption is small, and it has good electrical properties and radiation resistance; The flexibility, elongation, impact strength and permeability of high-pressure polyethylene are better; Ultra-high molecular weight polyethylene has high impact strength, fatigue resistance and abrasion resistance.

Low-voltage polyethylene is suitable for making corrosion-resistant parts and insulating parts; High-pressure polyethylene is suitable for making films, etc.; Ultra-high molecular weight polyethylene is suitable for making shock-absorbing, wear-resistant and transmission parts.

Molding performance 1Crystalline material, small moisture absorption, do not need to be fully dried, excellent fluidity is sensitive to pressure, it is advisable to use high-pressure injection when molding, the material temperature is uniform, the filling speed is fast, and the pressure holding is sufficient. Direct gate should not be used to prevent uneven shrinkage and increased internal stress.

Pay attention to the location of the gate to prevent porosity and deformation.

2.The shrinkage range and shrinkage value are large, the directionality is obvious, and it is easy to deform and warp. The cooling rate should be slow, and the mold should be equipped with a cold material cavity and a cooling system.

3.The heating time should not be too long, otherwise decomposition and burns will occur.

4.When soft plastic parts have shallow side grooves, they can be forcibly demolded.

5.Melt rupture may occur and should not be in contact with organic solvents to prevent cracking.

PEST is a method used by strategy consultants to help companies review their external macro environment. It refers to the analysis of the macro environment, and the macro environment, also known as the general environment, refers to the various macro forces that affect all industries and enterprises. For the analysis of macro environmental factors, different industries and enterprises will have different specific content of analysis according to their own characteristics and business needs, but generally should be analyzed in the four categories of political, economic, social and technological external environmental factors that affect enterprises.

In simple terms, this is called PEST analysis.

Socio-economic structure.

Socio-economic structure refers to the adaptability, proportion, and arrangement of different economic components, different industrial sectors, and various aspects of social reproduction in the national economy as a whole.

The social and economic structure mainly includes: industrial structure, distribution structure, exchange structure, consumption structure and technical structure. Among them, the most important is the industrial structure.

level of economic development.

The level of economic development refers to the scale, speed and level of economic development of a country. Commonly used indicators to reflect the level of economic development of a country are gross domestic product, national income, per capita national income and economic growth rate.

Economic. The economic system refers to the form of national economic organization, which stipulates the relationship between the state and enterprises, enterprises and enterprises, and enterprises and various economic sectors, and regulates or influences the scope, content, and mode of social and economic flow through certain management means and methods.

Macroeconomic policy.

Macroeconomic policy refers to the strategy and tactics to achieve the national economic development goals, which includes a comprehensive national development strategy and industrial policy, national income distribution policy, ** policy, material circulation policy, etc.

Current economic conditions.

The current state of the economy can affect the financial performance of a business. The growth rate of the economy depends on the overall change in the demand for goods and services. Other economic factors include tax levels, inflation rates, margins and exchange rates, unemployment rates, interest rates, credit disbursements, and subsidies.

Other general economic conditions.

Other general economic conditions and trends are also important to the success of a business. Changes in wages, vendors and competitors, and policies will affect the cost of production of products and the cost of providing services, as well as the market in which they are used. These economic factors may lead to competition within the industry or to knock companies out of the market, or they may extend product life, encourage companies to replace labor with automation, promote foreign investment or bring in local investment, weaken strong markets or make safe markets risky.