设为首页 设为收藏

联系方式

 

洛阳松导感应加热科技有限公司 

联系方式:15038554363  

24小时技术热线:15038554363

邮 箱:1390003299@qq.com

厂址:河南省洛阳市洛新工业园区

  • 产品
  • 梯形铝锭在线提温设备

    0.2T中频定点浇注炉

    钢坯加热炉

    超高温烧结炉

    钢管在线加热及保温装置

    40KW感应加热取暖炉

    氮化硼专用中频加热线圈

    电机端环焊接设备

    电机转子导条焊机设备

    5吨中频炉熔化铸铁

    底出水熔铝炉

    侧下出水中频炉

    0.2吨铜雾化定点浇注炉

    3吨中频炉熔化铸钢件

    3吨中频炉熔化废铝

    3吨中频炉2500kw熔化铸铁

    1吨中频炉熔化铸铁件专用炉

    1吨12脉一拖二中频炉

    2吨中频炉用熔化铸钢件

    铸铁件1吨中频炉

    2吨铸造中频炉

    铸造1吨中频炉

    1.5吨钢壳液压中频炉

    1.5吨钢壳液压定点浇注炉

    3吨串联逆变中频炉

    圆钢感应加热炉

    铝棒感应加热炉

    方钢感应加热炉

    技术资料
    分享到:
        本文为技术资料或者文章来自网络,仅供参考学习,如涉嫌侵权,请告知删除
        

    What aspects should be paid attention to when quenching cast iron induction heating furnace?

    Among all kinds of cast iron, the induction heating furnace quenching of gray cast iron is the most difficult. The quenching of gray cast iron induction heating furnace is similar to steel, and the quenching equipment used is also similar. The following differences should be noted:

    The heating time is longer than that of steel parts. Generally, it should be more than a few seconds and should be kept for a period of time so that the insoluble structure can be dissolved into austenite. If the heating speed is too fast, it will cause excessive thermal stress and cracks.

    The heating temperature should not be too high, the upper limit is 950℃, generally 900~930℃, different grades have an optimal temperature, when the heating temperature reaches 950℃, phosphorus eutectic will appear on the surface of the part, and there will be coarse retained austenite .

    3) In order to make the temperature slowly transition from the surface to the core, it is best not to quench immediately after heating, and pre-cooling for 0.5 ~ 2s is best.

    4) Induction heating furnace quenching of iron castings generally uses polymer aqueous solution or oil as the quenching cooling medium, and some parts such as the cylinder liner are directly quenched with water as the quenching cooling medium, and the valve seat of the cylinder body is quenched by self-cooling.

    5) After the gray iron castings are quenched in the induction heating furnace, low temperature tempering should be carried out in order to eliminate the stress. For example, the cylinder liner should be tempered at power frequency

    The matrix of ferritic malleable cast iron is ferrite and graphitic carbon. In order to dissolve carbon in austenite, it is necessary to increase the heating temperature (1050℃) and extend the heating time (up to 1min or more), so as to make a small part Graphite carbon is dissolved in austenite, and higher surface hardness can be obtained after quenching.


    Copyright© 2007-2013洛阳松导感应加热科技有限公司 All Rights Reserved 
    手 机:15038554363
    本站关键词:中频炉、中频电炉、熔炼炉