Flow characteristics シークレット カジノ SUMIKAEXCEL PES

Liquidity

The fluidity シークレット カジノ SUMIKAEXCEL PES improves significantly with increasing cylinder temperature, injection pressure and molded product thickness. On the other hand, the effect シークレット カジノ mold temperature is not so great. If mold release problems, glass fiber protrusions or weld cracks occur, we recommend raising the mold temperature to 160°C or higher.

Melt Viscosity Characteristics

The apparent melt viscosity シークレット カジノ SUMIKAEXCEL PES is as follows:

General Molding

This article focuses on the flow characteristics at a wall thickness シークレット カジノ 3 mm.

Effect シークレット カジノ cylinder temperature

Increasing the cylinder temperature reduces the melt viscosity シークレット カジノ the resin and improves its fluidity. Setting the cylinder temperature 20°C higher increases the bar flow length by 30 to 60%.

Figure 4-2-3 Temperature dependence シークレット カジノ barflow length

Effect シークレット カジノ injection pressure

By setting the injection pressure 20MPa higher, the bar シークレット カジノ length will improve by 10 to 20%. Generally, high pressure molding is recommended, but care must be taken to prevent mold release problems and residual stress caused by overfilling. Furthermore, the appropriate conditions are selected by setting the secondary pressure.

Figure 4-2-4 Dependence シークレット カジノ bar flow length on injection pressure (4100G)

Effect シークレット カジノ injection speed

The injection speed does not have a significant effect on the bar シークレット カジノ length.

Figure 4-2-5 Dependence シークレット カジノ bar flow length on injection speed (4100G)

Effect シークレット カジノ product thickness

The flow length increases rapidly with wall thickness. For wall thicknesses シークレット カジノ 1.5 mm or more, a 0.5 mm increase in wall thickness increases the flow length by 40 to 70%.

Figure 4-2-6 Effect シークレット カジノ wall thickness on bar flow length (4100G)

Thin-wall molding

This section describes the flow characteristics シークレット カジノ molded products with wall thicknesses シークレット カジノ 0.1 to 0.7 mm.

Effect シークレット カジノ cylinder temperature

Increasing the cylinder temperature improves fluidity, but the effect is small for wall thicknesses シークレット カジノ 0.3 mm or less. Taking into account the effects シークレット カジノ retention, a temperature シークレット カジノ up to about 380°C is appropriate.

Effect シークレット カジノ product thickness

Please note that fluidity depends on the wall thickness when designing your product.

Effect シークレット カジノ injection pressure

Thin-wall flow is relatively greatly affected by injection pressure. We recommend an injection pressure シークレット カジノ 100 MPa or more, but please determine the appropriate pressure taking into consideration the product appearance and residual stress.

Effect シークレット カジノ injection speed

Thin wall fluidity is not affected much by the シークレット カジノ speed. If the シークレット カジノ speed is too high, it may cause defects such as burning.

Effect シークレット カジノ mold temperature

Thin-wall シークレット カジノ is not affected much by the mold temperature. However, if mold release problems, glass fiber protrusions, or weld cracks occur, we recommend setting the mold temperature to 160°C or higher.