常州亿创钣金加工厂专业从事精密钣金加工、激光切割加工为主的钣金加工型厂家

常州亿创钣金加工厂

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钣金加工的主要用途是什么?制造简单、成本低

2018-06-03 13:01:32 常州亿创钣金加工厂 阅读

钣金加工具有重量轻、强度高、导电(能够用于电磁屏蔽)、成本低、大规模量产性能好等特点,在电子电器、通信、汽车工业、医疗器械等领域得到了广泛应用,例如在电脑机箱、手机、MP3中,钣金是必不可少的组成部分。

随着钣金的应用越来越广泛,钣金件的设计变成了产品开发过程中很重要的一环,机械工程师必须熟练掌握钣金件的设计技巧,使得设计的钣金既满足产品的功能和外观等要求,又能使得冲压模具制造简单、成本低。

适合于冲压加工的钣金材料非常多,广泛应用于电子电器行业的钣金材料包括:

1、普通冷轧板 SPCC SPCC是指钢锭经过冷轧机连续轧制成要求厚度的钢板卷料或片料。SPCC表面没有任何的防护,暴露在空气中极易被氧化,特别是在潮湿的环境中氧化速度加快,出现暗红色的铁锈,在使用时表面要喷漆、电镀或者其它防护。

2、镀锌钢板SECC SECC的底材为一般的冷轧钢卷,在连续电镀锌产线经过脱脂、酸洗、电镀及各种后处理制程后,即成为电镀锌产品,SECC不但具有一般冷轧钢片的机械性能及近似的加工性,而且具有优越的耐蚀性及装饰性外观,在电子产品、家电及家具的市场上具有很大的竞争性及取代性。例如电脑机箱普遍使用的就是SECC。

3、热浸镀锌钢板SGCC 热浸镀锌钢卷是指将热轧酸洗或冷轧后之半成品,经过清洗、退火,浸入温度约460°C的溶融锌槽中,而使钢片镀上锌层,再经调质整平及化学处理而成。SGCC材料比SECC材料硬、延展性差(避免深抽设计)、锌层较厚、电焊性差。

4、不锈钢SUS301 Cr(铬)的含量较SUS304低,耐蚀性较差,但经过冷加工能获得很好的拉力和硬度,弹性较好,多用于弹片弹簧以及防EMI。

5、不锈钢SUS304 使用最广泛的不锈钢之一,因含Ni(镍)故比含Cr(铬)的钢较富有耐蚀性、耐热性,拥有非常好的机械性能,无热处理硬化现象,没有弹性。

Sheet metal processing has the characteristics of light weight, high strength, electrical conductivity (able to be used for electromagnetic shielding), low cost, and good mass production performance. It has been widely used in electronic and electrical, communication, automobile industry, medical equipment and other fields. For example, in computer chassis, mobile phone and MP3, sheet metal is an essential part.

With the application of sheet metal more and more widely, the design of sheet metal parts becomes a very important part of the process of product development. The mechanical engineers must master the design skills of sheet metal parts skillfully, so that the design of sheet metal not only meets the requirements of the product's function and appearance, but also makes the stamping die manufacturing simple and low cost.

Sheet metal materials suitable for stamping are very numerous. Sheet metal materials widely used in electronic and electrical industry include:

1. The common cold rolled plate SPCC SPCC refers to the continuous rolling of steel ingots through the cold rolling mill to make steel sheet or sheet material with required thickness. There is no protection on the surface of the SPCC. The exposure to the air is very easy to be oxidized, especially in the wet environment, the speed of oxidation is accelerated, the dark red rust appears, and the surface should be painted, electroplated, or other protective surfaces.

2, the base material of SECC SECC of galvanized steel plate is a general cold rolled steel coil. After the continuous galvanizing line is degreased, acid washing, electroplating and various post-processing processes, it becomes a galvanizing product. SECC not only has the mechanical properties and approximate machinability of the common cold rolled steel sheet, but also has superior corrosion resistance and decorative appearance. The market of electronic products, household appliances and furniture has great competitiveness and substitution. For example, the common use of computer boxes is SECC.

3, hot dipped galvanized steel SGCC hot dip galvanized steel coil is to hot rolled or cold rolled semi finished products, after cleaning, annealing, immersed in a melting zinc trough of about 460 C, zinc coating on the steel sheet, and then leveling leveling and chemical treatment. The SGCC material is harder than the SECC material and has poor ductility (avoiding deep drawing design). The zinc layer is thick and the electric welder is poor.

4, the content of stainless steel SUS301 Cr (chromium) is lower than that of SUS304, and the corrosion resistance is poor, but after cold processing, it can get good tensile and hardness and good elasticity, which is mostly used for spring spring and anti EMI.

5, stainless steel SUS304 is one of the most widely used stainless steel, because the steel containing Ni (nickel) is more corrosion resistant and heat-resistant than the steel containing Cr (chromium). It has very good mechanical properties, no heat treatment hardening and no elasticity.



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