CN110434334A - 一种厨具用超导热解冻板的制备方法 - Google Patents

一种厨具用超导热解冻板的制备方法 Download PDF

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CN110434334A
CN110434334A CN201910764246.9A CN201910764246A CN110434334A CN 110434334 A CN110434334 A CN 110434334A CN 201910764246 A CN201910764246 A CN 201910764246A CN 110434334 A CN110434334 A CN 110434334A
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defrosting plate
heat superconducting
silicon carbide
heat
aluminum
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何如森
李海峰
曹俊
魏富中
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Changzhou Tegel Electronic Material Technology Co Ltd
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Abstract

本发明公开了一种厨具用超导热解冻板的制备方法，其步骤包括：超导热解冻板复合材料成分设计：包括碳化硅55～65％，余量为纯铝；制备铝基碳化硅复合材料粉末，所述铝基碳化硅复合材料粉末由同质颗粒组成，每一同质颗粒均为碳化硅外包裹纯铝的结构；超导热解冻板复合材料成型：利用三维软件进行建立超导热解冻板铝基碳化硅复合材料的三维模型图；将a步骤制备的铝基碳化硅复合材料粉末装入激光选区烧结设备中，并将三维图形导入进行超导热解冻板3D打印成型；超导热解冻板复合材料热处理；超导热解冻板复合材料表面处理。本发明使得冷冻的食品快速解冻，铝基碳化硅复合材料粉末由同质颗粒组成，使成型工艺更为简单。

Description

一种厨具用超导热解冻板的制备方法
技术领域
本发明涉及超导热厨具制备领域，尤其涉及一种厨具用超导热解冻板的制备方法。
背景技术
随着社会的不断发展和科技水平的提高，人们采用冷冻方式对食材进行储存，如各种肉类和鱼类。然而在食用之前需要对冷冻的食材进行解冻，目前传统的解冻方式主要分为：自然解冻、水泡解冻和微波解冻。自然解冻是将冷冻的食物从冰箱或冷冻库取出，不做任何处理，将其搁置空气中，让其自然解冻。该方式解冻时间较长，易滋生细菌、不卫生。水泡解冻和微波解冻，虽然相比自然解冻耗时较短，但该解冻方式会破坏食材营养成分，失去食材原有的口感。
发明内容
本发明针对以上现有问题，进行解冻板材料研究改进，提供了一种厨具用超导热解冻板的制备方法，是一种以碳化硅颗粒增强型的铝基体复合材料，表面采用食品级特氟龙进行处理。超导热解冻板是利用铝基碳化硅复合材料这种特殊合成金属基复合材料优越的导热性能，可实现高速热交换，让冷冻食材达到快速自然解冻效果，无需耗电耗水，快速解冻同时兼顾节能低碳，绿色环保，安全可靠。
本发明所采用的技术方案如下：
一种厨具用超导热解冻板的制备方法，包括以下步骤：
a、超导热解冻板复合材料成分设计：所述超导热解冻板复合材料包括碳化硅和纯铝，二者的体积百分比为：碳化硅55～65％，余量为纯铝；制备铝基碳化硅复合材料粉末，所述铝基碳化硅复合材料粉末由同质颗粒组成，每一同质颗粒均为碳化硅外包裹纯铝的结构；
b、超导热解冻板复合材料成型：利用三维软件进行建立超导热解冻板铝基碳化硅复合材料的三维模型图；将a步骤制备的铝基碳化硅复合材料粉末装入激光选区烧结设备中，并将三维图形导入进行超导热解冻板3D打印成型；
c、超导热解冻板复合材料热处理；
d、超导热解冻板复合材料表面处理。
更进一步地，所述步骤b中超导热解冻板复合材料成型步骤包括：(1)制备铝基碳化硅复合材料粉末；(2)建立铝基碳化硅复合材料结构件三维模型；(3)采用铺粉法对铝基碳化硅复合材料粉末进行激光选区烧结。
更进一步地，所述步骤c中超导热解冻板复合材料热处理采用大锭型高温均匀化热处理方法和薄板低温去应力退火方法。
更进一步地，所述大锭型高温均匀化热处理方法的热处理温度为500±10℃、处理时间为2h；所述薄板低温去应力退火方法的温度为300±10℃、退火时间为0.5h。
更进一步地，所述步骤c中超导热解冻板复合材料表面处理采用不粘涂层、易清洁物料特氟龙—聚四氟乙烯喷涂处理，其化学式为-(CF2-CF2)n-。
更进一步地，所述激光选区烧结的成型参数为：激光功率为300～500W，扫描速率为500～800mm/s；扫描间距为20～40μm；铺粉厚度为0.4～0.5mm。
更进一步地，采用保护性气氛，所述的保护性气氛为氮气或者氩气，以及多种混合气体。
更进一步地，所述的特氟龙喷涂采用低温喷涂工艺，包括：(1)超导热解冻板表面清洁和喷砂处理；(2)特氟龙粉体低温喷涂；(3)对附着有特氟龙粉体的超导热解冻板熔融处理。
本发明的有益效果如下：
超导热解冻板是利用铝基碳化硅复合材料的高热导性能，通过3D打印激光选区烧结技术成型，表面喷涂食品级特氟龙。厨具用超导热解冻板在室温中，通过高速的热交换，使得冷冻的食品达到快速解冻的效果。解冻过程无需耗费水电，快速解冻同时兼顾节能低碳，绿色环保，安全可靠。铝基碳化硅复合材料粉末由同质颗粒组成，每一同质颗粒均为碳化硅外包裹纯铝的结构，该颗粒组成的粉末结构使后续的3D打印过程更为便捷高效，使成型工艺更为简单。
附图说明
图1为本发明方法中的生产流程示意图。
具体实施方式
下面结合附图，说明本发明的具体实施方式。
实施例1：
本发明的一种厨具用超导热解冻板的制备方法步骤如图1所示，主要包括以下步骤：a超导热解冻板复合材料成分设计、b超导热解冻板复合材料成型、c超导热解冻板复合材料热处理，d超导热解冻板复合材料表面处理。具体步骤如下：
第一步：选取颗粒度均匀和纯度较高的绿碳化硅和高纯铝，制备铝基复合材料粉末。超导热解冻板复合材料成份为(体积百分比)：碳化硅(SiC)55～65％，纯铝(Al)余量。
第二步：利用三维软件进行建立超导热解冻板铝基碳化硅复合材料的三维模型图。
第三步：将第一步制备的铝碳化硅复合材料粉末装入激光选区烧结设备中，并将第二部中建立的三维图形导入进行超导热解冻板3D打印成型。超导热解冻板复合材料成型工艺采用3D打印—激光选区烧结(SLS)技术，主要包括：(1)铝基碳化硅复合材料粉末，(2)建立铝基碳化硅复合材料结构件三维模型，(3)采用铺粉法对铝基碳化硅复合材料粉末进行激光选区烧结。激光选区烧结的成型参数为：激光功率为300～500W，扫描速率为500～800mm/s；扫描间距为20～40μm；铺粉厚度为0.4～0.5mm。采用保护性气氛，保护性气氛为氮气或者氩气，以及多种混合气体。
第四步：将第三步激光选区烧结的铝碳化硅复合材料解冻板坯料进行均匀化退火热处理，消除激光选区烧结产生的残余应力。
第五步：将第四步经过均匀化退火热处理的铝基碳化硅解冻板坯料进行机械加工成成品尺寸。超导热解冻板复合材料热处理采用大锭型高温均匀化热处理技术(500±10℃，2h)和薄板低温去应力退火技术(300±10℃，0.5h)。
第六步：将第五步中经过机械加工的超导热解冻板坯料进行低温去应力退火处理，使得超导热解冻板热物理性能达到最优状态。
第七步：将第六步中经过低温退火处理的超导热解冻板坯料进行表面喷砂处理。超导热解冻板复合材料表面处理采用不粘涂层、易清洁物料特氟龙—聚四氟乙烯(PTFE)喷涂处理，其化学式为-(CF2-CF2)n-。所述的特氟龙喷涂采用低温喷涂工艺。主要包括(1)超导热解冻板表面清洁和喷砂处理，(2)特氟龙粉体低温喷涂，(3)对附着有特氟龙粉体的超导热解冻板熔融处理。
第八步：将第七步中经过喷砂处理后的超导热解冻板表面进行食品级特氟龙粉体低温喷涂。
第九步：将第八步中表面附有食品级特氟龙颗粒的超导热解冻板进行低温热熔处理，获得喷涂均匀、结合强度较高的特氟龙涂层。
综上所述，本发明涉及一种厨具用超导热解冻板的制备方法，利用铝基碳化硅复合材料高导热系数这一特性，使得冷冻食材在室温下可实现高速热交换，让冷冻食材达到最快自然解冻效果，保持食物原有口味和营养。复合材料表面进行特氟龙涂层处理，从而获得绿色环保、安全可靠和健康卫生的食品级厨具用超导热解冻板。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (8)

1.一种厨具用超导热解冻板的制备方法，其特征在于，包括以下步骤：
a、超导热解冻板复合材料成分设计：所述超导热解冻板复合材料包括碳化硅和纯铝，二者的体积百分比为：碳化硅55～65％，余量为纯铝；制备铝基碳化硅复合材料粉末，所述铝基碳化硅复合材料粉末由同质颗粒组成，每一同质颗粒均为碳化硅外包裹纯铝的结构；
b、超导热解冻板复合材料成型：利用三维软件进行建立超导热解冻板铝基碳化硅复合材料的三维模型图；将a步骤制备的铝基碳化硅复合材料粉末装入激光选区烧结设备中，并将三维图形导入进行超导热解冻板3D打印成型；
c、超导热解冻板复合材料热处理；
d、超导热解冻板复合材料表面处理。
2.如权利要求1所述的一种厨具用超导热解冻板的制备方法，其特征在于：所述步骤b中超导热解冻板复合材料成型步骤包括：(1)制备铝基碳化硅复合材料粉末；(2)建立铝基碳化硅复合材料结构件三维模型；(3)采用铺粉法对铝基碳化硅复合材料粉末进行激光选区烧结。
3.如权利要求1所述的一种厨具用超导热解冻板的制备方法，其特征在于：所述步骤c中超导热解冻板复合材料热处理采用大锭型高温均匀化热处理方法和薄板低温去应力退火方法。
4.如权利要求3所述的一种厨具用超导热解冻板的制备方法，其特征在于：所述大锭型高温均匀化热处理方法的热处理温度为500±10℃、处理时间为2h；所述薄板低温去应力退火方法的温度为300±10℃、退火时间为0.5h。
5.如权利要求1所述的一种厨具用超导热解冻板的制备方法，其特征在于：所述步骤c中超导热解冻板复合材料表面处理采用不粘涂层、易清洁物料特氟龙—聚四氟乙烯喷涂处理，其化学式为-(CF2-CF2)n-。
6.如权利要求1或2所述的一种厨具用超导热解冻板的制备方法，其特征在于：所述激光选区烧结的成型参数为：激光功率为300～500W，扫描速率为500～800mm/s；扫描间距为20～40μm；铺粉厚度为0.4～0.5mm。
7.如权利要求1或2所述的一种厨具用超导热解冻板的制备方法，其特征在于：采用保护性气氛，所述的保护性气氛为氮气或者氩气，以及多种混合气体。
8.如权利要求5所述的一种厨具用超导热解冻板的制备方法，其特征在于：所述的特氟龙喷涂采用低温喷涂工艺，包括：(1)超导热解冻板表面清洁和喷砂处理；(2)特氟龙粉体低温喷涂；(3)对附着有特氟龙粉体的超导热解冻板熔融处理。
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