硬质中厚氧化铝板、模具中厚氧化铝板脱碳 多采用2***系铝合金、6***系铝合金、7***系铝合金，硬质中厚氧化铝板、模具中厚氧化铝板铝合金预拉伸板制零部件普通对强度请求较高。例如：2014铝合金预拉伸板、2017铝合金预拉伸板、2024铝合金预拉伸板、2A 12铝合金预拉伸板、2A 14铝合金预拉伸板、6061铝合金预拉伸板、6082铝合金预拉伸板、7A 04铝合金预拉伸板、7B04铝合金预拉伸板、7A 09铝合金预拉伸板、7050铝合金预拉伸板、7075铝合金预拉伸板等2A 12
　　Carbon removal of hard medium-thickness alumina plate and die medium-thickness alumina plate mostly adopts 2 *** series aluminium alloy, 6 *** series aluminium alloy and 7 *** series aluminium alloy. Hard medium-thickness alumina plate and die medium-thickness alumina plate parts of aluminium alloy pre-stretching plate generally require higher strength. For example: 2014 aluminum alloy pre-stretching plate, 2017 aluminum alloy pre-stretching plate, 2024 aluminum alloy pre-stretching plate, 2A12 aluminum alloy pre-stretching plate, 2A14 aluminum alloy pre-stretching plate, 6061 aluminum alloy pre-stretching plate, 6082 aluminum alloy pre-stretching plate, 7A 04 aluminum alloy pre-stretching plate, 7A 09 aluminum alloy pre-stretching plate, 7050 aluminum alloy pre-stretching plate, 7075 aluminum alloy pre-stretching plate, etc. 2A 12
　　硬质中厚氧化铝板、模具中厚氧化铝板脱碳

　　Decarbonization of Hard Medium Thick Alumina Plate and Die Medium Thick Alumina Plate
　　多采用2***系铝合金、6***系铝合金、7***系铝合金，硬质中厚氧化铝板、模具中厚氧化铝板铝合金预拉伸板制零部件普通对强度请求较高。例如：2014铝合金预拉伸板、2017铝合金预拉伸板、2024铝合金预拉伸板、2A 12铝合金预拉伸板、2A 14铝合金预拉伸板、6061铝合金预拉伸板、6082铝合金预拉伸板、7A 04铝合金预拉伸板、7B04铝合金预拉伸板、7A 09铝合金预拉伸板、7050铝合金预拉伸板、7075铝合金预拉伸板等2A 12中厚氧化铝板6061中厚氧化铝板、5052中厚氧化铝板、3003中厚氧化铝板、3A 21中厚氧化铝板、5083中厚氧化铝板、1060中厚氧化铝板、2024中厚氧化铝板、5A 05中厚氧化铝板、6082中厚氧化铝板、
　　Aluminum alloy of 2 *** series, 6 *** series and 7 *** series are mostly used. Aluminum alloy parts of hard medium-thickness alumina plate and die medium-thickness alumina plate require higher strength. For example: 2014 aluminum alloy pre-stretching plate, 2017 aluminum alloy pre-stretching plate, 2024 aluminum alloy pre-stretching plate, 2A12 aluminum alloy pre-stretching plate, 2A14 aluminum alloy pre-stretching plate, 6061 aluminum alloy pre-stretching plate, 6082 aluminum alloy pre-stretching plate, 7A 04 aluminum alloy pre-stretching plate, 7A 09 aluminum alloy pre-stretching plate, 7050 aluminum alloy pre-stretching plate, 7075 aluminum alloy pre-stretching plate, etc. 2A 12 Medium and Thick Alumina Plate 6061 Medium and Thick Alumina Plate, 5052 Medium and Thick Alumina Plate, 3003 Medium and Thick Alumina Plate, 3A 21 Medium and Thick Alumina Plate, 5083 Medium and Thick Alumina Plate, 1060 Medium and Thick Alumina Plate, 2024 Medium and Thick Alumina Plate, 5A 05 Medium and Thick
　　7050中厚氧化铝板、7A 04中厚氧化铝板、LY12-CZ中厚氧化铝板、6A 02中厚氧化铝板、7075中厚氧化铝板、6063中厚氧化铝板、合金中厚氧化铝板、5754中厚氧化铝板、硬质中厚氧化铝板、模具中厚氧化铝板、机加工中厚氧化铝板、油箱中厚氧化铝板等。1氧化铝板脱碳 脱碳是由于钢件在加热或保温时，因四周氛围的作用，使外表层局部的碳全部或局部丧失的现象和反响。钢件的脱碳不只会形成硬度缺乏、淬裂和热处置变形及化学热处置缺陷，而且对疲倦强度、耐磨性及模具性能也有很大影响。2氧化铝板韧性缺乏 韧性缺乏的缘由可能是淬火温渡过高，且保温时间过长惹起晶粒粗化形成的或由于没有避开回火脆性区停止回火。3氧化铝板磨削裂纹 当工件内有大量的残留奥氏体时，磨削热的作用下，发作回火转变，从而q355c方管产生组织应力，招致工件开裂。其预防措施是淬火后停止深冷处置或屡次反复回火(模具回火普通为23次，即便是冷加工用低合金工具钢也是如此)较大限度地降低残留奥氏体量。4氧化铝板放电加工惹起的裂纹 模具制造中，采用放电加工(电脉冲及线切割)越来越普遍采用的加工办法，但随着放电加工的普遍应用，其惹起的缺陷也相应增加。由于放电加工是借助于放电所产生的高温而使模具外表凝结的加工办法，因而，其加工外表构成白色的放电加工蜕变层，并产生800mpa左右的拉应力，这样，模具的电加工过程中常呈现变形或裂纹等缺陷。因而，采用放电加工的模具，必需充沛控制放电加工对模具资料的影响，并预先采取相应的预防措施。这是氧化铝板中经常呈现的质量问题，关于氧化铝板要加强它各个方面的优势和特征，购置的时分要格外地停止去留意，这样的话氧化铝板在购置的时分就可以防止呈现这些毛病，也防止上上当。
　　7050 medium-thick alumina plate, 7A 04 medium-thick alumina plate, LY12-CZ medium-thick alumina plate, 6A 02 medium-thick alumina plate, 7075 medium-thick alumina plate, 6063 medium-thick alumina plate, alloy medium-thick alumina plate, 5754 medium-thick alumina plate, hard medium-thick alumina plate, die medium-thick alumina plate, machined medium-thick alumina plate, oil tank medium-thick alumina plate, etc. 1 The decarbonization and decarbonization of alumina plate is due to the phenomenon and reaction of partial loss of carbon in the outer layer due to the effect of surrounding atmosphere when steel parts are heated or insulated. Decarburization of steel not only results in hardness deficiency, quenching, heat treatment deformation and chemical heat treatment defects, but also has a great influence on fatigue strength, wear resistance and die performance. The reason for the lack of toughness of alumina plate may be that the quenching temperature is too high and the holding time is too long, which causes the grain coarsening or stops tempering because the tempering brittle zone is not avoided. 3. When there is a large amount of retained austenite in the workpiece, the tempering transformation occurs under the action of grinding heat, which results in the microstructural stress of q355c square pipe and the cracking of the workpiece. The preventive measures are to stop cryogenic treatment or repeated tempering after quenching (die tempering is usually 23 times, even for cold working low alloy tool steels) to minimize the amount of retained austenite. 4. In the manufacturing of crack dies caused by EDM of alumina plate, EDM (electric pulse and wire cutting) is more and more widely used. However, with the widespread application of EDM, the defects caused by EDM increase correspondingly. Because EDM is a processing method that solidifies the surface of dies by means of high temperature generated by discharge, the surface of the dies formed a white EDM degeneration layer and produced about 800 MPa of tensile stress. In this way, defects such as deformation or cracks often occur in the process of dies'EDM. Therefore, it is necessary to fully control the influence of EDM on die data and take corresponding preventive measures in advance. This is a quality problem often presented in alumina board. As for alumina board, we should strengthen its advantages and characteristics in all aspects. We should pay special attention to the purchase time. In this way, alumina board can prevent these defects and be deceived when it is purchased.