The fine art of setting the temperature parameters of the upper shell of the injection molded T2 type upper shell for dimming motor

1. Temperature setting: the cornerstone of shaping perfection
Barrel temperature: precise matching of material properties
The setting of the barrel temperature is the first and most important step in the injection molded T2 type upper shell for dimming motor process. The melting temperature (or viscosity flow temperature) and decomposition temperature of the injection molding material selected for the upper shell of the T2 type dimming motor are the key basis for determining the barrel temperature range. Generally speaking, the barrel temperature should be set slightly higher than the melting temperature of the material to ensure that the plastic can be fully plasticized and has good fluidity to facilitate filling the mold cavity. At the same time, the temperature must be strictly controlled not to exceed the decomposition temperature of the material to prevent the plastic from degrading at high temperatures and affecting the physical properties and appearance quality of the product. Therefore, understanding and accurately mastering the thermal properties of the materials used is a prerequisite for achieving efficient injection molding.

Nozzle temperature: the subtle art of balancing flow and control
As the last checkpoint for the plastic melt to enter the mold, the temperature setting of the nozzle is also crucial. The nozzle temperature is usually slightly lower than the maximum temperature of the barrel. This design is intended to reduce the residence time of the molten material at the nozzle and avoid the occurrence of "drooling phenomenon", that is, the molten material continues to drip from the nozzle due to excessive temperature, causing material waste and environmental pollution. However, the nozzle temperature should not be too low, otherwise the molten material will solidify prematurely when approaching the nozzle outlet, causing nozzle blockage and affecting continuous production. Therefore, the setting of the nozzle temperature needs to comprehensively consider the fluidity of the material, the injection speed and the mold structure to find a balance point that can ensure smooth injection and effectively prevent drooling.

Mold temperature: precise control of cooling and solidification
Mold temperature is a key factor affecting the cooling speed, crystallinity, shrinkage and surface quality of the upper shell of the T2 dimming motor. For crystalline materials, higher mold temperatures help promote crystallization and improve the strength and hardness of the product; while for non-crystalline materials, more attention is paid to reducing shrinkage and internal stress by appropriately lowering the mold temperature to obtain a smoother and smoother surface. In addition, the mold temperature needs to be adjusted according to the size, wall thickness and required performance of the product. For example, for thin-walled parts, rapid cooling helps reduce deformation, while for thick-walled parts, longer cooling time may be required to ensure sufficient internal solidification. Therefore, precise control of mold temperature is an indispensable part of achieving high-quality injection molding.

2. Practical wisdom of temperature management
In actual operation, the temperature setting is not static, but needs to be dynamically adjusted according to the actual situation in the production process. For example, by observing the appearance quality, dimensional stability and changes in the production cycle of the injection molded parts, signs of improper temperature setting can be discovered in time and corresponding adjustment measures can be taken. At the same time, the intelligent temperature control system of modern injection molding machines can achieve precise control and real-time monitoring of temperature, further improving production efficiency and product quality.