铸铝加热圈（L板）经精加工后它能和被加热体紧密贴合。其使用温度一般在摄氏150～450度之间，可广泛应用于塑料机械、模头、电缆机械、化工、橡胶、石油等设备上。是以管状电热元件为发热体，并弯曲成型，用铸材料为外壳，外壳以离心式浇铸成各种形状的电加热器，有圆型、平板、直角型、风冷、水冷及其它异型等。
铸铝加热圈（L板）技术特性
1.铸铝加热板表面负荷可达到2.5-4.5w/cm²，工作温度300-450℃之间；
2.铸铝加热板是一种热分部均匀的加热器，热导性好的金属合金，确保热面温度均匀，消除了设备的热点及冷点。具有长寿命、保温性能好、机械性能强、耐腐蚀、抗磁场等优点。将外散热面增加保温装置，内散热面烧结红外线这样可节约用电35%。
应用范围
主要用于塑料工业注塑机、挤出机和吹塑机的加热，同时也可用于反应釜、熔体管道等化工领域的加热。
产品结构
采用电加热管，浇铸在铝或铜等金属材料中，加热丝与空气隔绝，加热体坚固耐用，加热均匀，热交换迅速，可在加热体内设置冷却水道或风道。特殊环境中采用防爆接线盒，如需保温，则配置保温层。
技术参数
铸铝工作温度可达350℃，功率密度可高至3.5W/cm²。
铸铜工作温度可达650℃，功率密度可高至8W/cm²。
Application
It is mainly applied to heating the plastic injection molding machine, extrusion machine and blowing machine. Meantime, it also can be used to heat reaction kettle, melt pipe, etc in chemical industry.
Structure
The electric heating tube is adopted with its heating strip casted inside the metal material such as aluminum or copper and isolated from the air. The heating body is tough and durable, which heats evenly and exchanges heat very fast. Cooling water or air duct could be set up inside the heating body for option. In particular environment, we use anti-explosion junction box. If thermal preservation is needed, we shall add insulation layer.
Technical parameter
The working temperature and the power density of cast aluminum are respectively up to 350℃℃ and 3.5W/cm2.
These of cast copper are 650℃℃ and 8W/cm2.
