模具加热炉

新型铝型材挤压模具快速加热装置简介

New Style Rapid Aluminum Profile Die Heating Oven

铝型材挤压模具是铝型材加工生产重要的组成部分，模具炉是配合挤压机使用的设备，将模具加热至铝棒相近的温度，有利于挤压成型。在行业中，一般使用的模具加热通常是电阻加热炉，电阻发热体发热后，除向通孔内胆传热外，还用热风循环风机，把发热体产生的热量通过空气传递进内胆，使模具加热。

Extrusion die of aluminium profile is an important part of processing and producing aluminium profile. Working with extruding machine, the die heater heats up die to the temperature close to aluminium bar's in favor of ultimate shaping. Normally, electric resistace heating oven is used for die heating in the industry, which first heats up resistance heating element, and then transfers its produced heat to liner with accessible holes and other liners through air using hot wind cycling machine to warm up the die.

电阻炉加热的方式长时间来存在着以下的缺陷：

Old Electric resistace heating oven method's defects:

1、用电功率较大，耗电量很大 ，使用成本髙。

Large electric power consumption, large electricity consumption, high using cost;

2、加温时间长，一般常温加热至500℃时间 需要2-3小时。（200mm模）

Long heating time:2-3 hours are needed to heat from normal temperature to 500℃(200mm die);

3、对电阻发热管的均匀度要求很高，否则会造成局部温度过高现象  

 High demand for uniformity of the electric resistance heating tube,otherwise overheating phenomenon in parts will occur;

4、电阻丝的电阻随温度变化而变化。加热箱环境温度高

Electric resistance of resisting wire varies with the variation of temperature,while the environmental temperature of heating oven is very high;

5、设备笨重占地多，取模不便，而且发热管寿命短，对维护及生产安全带来隐患。

Equipment is large and heavy, occupying a large area; difficult to take out dies; short service life of heating tubes; hidden troubles for maintenance and production safety. 

更重要的是使用传统的加热炉对模具存在着致命的损害，严重缩短了模具的使用寿命和影响产品质量。模具温度对于获得高的产量起着重要的作用，一般不得低于430℃；另方面，也不得过高于500℃，否则，不但硬度可能下降，同时模具工作面会产生氧化；模具在长时间高温下加热（特别在超过金属居里点）模具金属易疲劳易开裂，影响产品质量。（特别是用油、煤加热对模具产生氧化、模具回炉退火率、模具易开裂的影响）

More importantly, traditional heating oven will deadly damage the die, largely shorten its service life and decrease its quality. The temperature of the die plays a significant role for yield, which normally must be ≥430℃ and ≤500℃,or the die's hardness might fall and its working surface may oxidize. Heated in high temperature for a long time(especially over the metal curie point),the die metal is liable to weary and crack, especially when using oil, coal to heat, it's easy to make die oxidize and crack as well as influence its reheating and  annealing ratio.

本公司最新推出的ANSA-JRA高效挤压模具加热设备，迎合现阶段铝业市场的发展需要，对型材加工企业很好的一种提高生产效率的节能降耗设备。温度控制精准，模具加热到设定温度后，可自动退出加热控制系统，耗电极小。采用先进的隔离磁能感应加热，使得生产过程中安全系数大大提高。设备使用寿命更长。

由于模具加热可自动操作，加热时间短，可做到快速换模，减少作业时间，提高生产效率。改善了模具分类加热的协同操作，达到更换挤压模具的快速性和准确性。

Our company now puts forward ANSA-JRA fast heating device for extrusion die, a style of   energy-saving, cost-reducing, production-enhancing equipment for aluminium profile processing enterprises, to meet present market demands of aluminium industry, which can precisely control temperature and automatically quit from heating controlling system while the die's temperature reaches the reset one with extremely small power consumption. Meanwhile, advanced separated magnetic energy induction heating method is adopted to enhance the safety index during production and extend equipment service life.

一、       与传统加热方式对比

Compared with traditional Heating Oven

挤压模具新旧加热方式对比表（模径200mm）

Comparing table of new and old heating method for extrusion die(diameter 200mm)