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Make you a comprehensive understanding of simple metal key chain

Release date:2015-01-04 16:22:53

Metal key chain is the life of the most common key chain, has beautiful and easy, delicate and cabinet, durable, stereo sense is strong, bright color, shape and varied characteristics. Can be as luggage accessories, personal accessories, style diversity, can produce according to the different specifications, color, thickness, grade, packaging products, also can give their key key chain which you like on collocation, can not only reflect his own personality and taste, more can bring to our daily life more cheerful mood. Metal key chain can also be used as gifts to friends or oneself, express your a heart simple below to learn about this product.

 

1, the modelling of metal key chain

 

Metal key chain as an ornament hung on a key ring, is known as the key rings, key ring, key chains and keys hanging, etc., its shape is various, common have cartoon characters, brand modelling, simulation modelling and made into a variety of process modelling can imagine.

 

2, the material of metal key chain

 

Is one of the most common metal materials, including materials such as copper, iron, zinc alloy, stainless steel, with copper key chain made of the most expensive, with iron making relatively much cheaper. Made of metal key chain, generally do surface treatment, such as nickel plating, copper plating, plating, etc., to increase its aesthetic effect, and can achieve the result of fakes rust and wear.

 

3, metal key chain process

 

Metal key chain is the most common, in fact it also is a kind of badge production, all kinds of badge production process, such as stamping, electroplating, paint, enamel badges, printing and bite version, and are likely to use. In our other articles, a detailed interpretation of the badge process, is no longer here in detail.

 

4, metal key shape

 

According to the shape of a key ring and can be divided into: heart key ring, five-pointed star, key ring, aperture, flat coil, Angle, pressure wreath, special-shaped key ring and so on.

 

5, metal key chain size

 

According to the size specifications can also be divided into: 12 mm outside diameter key chain, key chain, 13 mm diameter 15 mm outside diameter key chain, key chain, 18 mm diameter 20 mm outside diameter key chain, key chain, 25 mm diameter 28 mm outside diameter key chain, key chain, 30 mm diameter of 32 mm outside diameter key chain, key chain, 33 mm diameter 35 mm outside diameter key chain, key chain, 38 mm diameter 43 mm outside diameter keychains, 48 mm outside diameter key chain and so on.

 

6, the classification of the metal key chain

 

According to the material can be divided into: iron key chain, key chain, copper stainless steel key chain and so on.

  按弯头规格下料,再考虑曲率半径, 比如。

  90°的弯头,通过其曲率可以算出下多长料可加工出90°的弯头。通过理论计算可算出,然后以该长度为定尺进行切断。最后把料进行热推制。推制机大家可能都看过,实际很简单。它是一个牛角状芯头或芯棒。

  芯棒由细变粗,推制过程是一个扩径带弯曲的过程。后边有支撑,把下料管段穿入芯棒。

  后边有一牌坊架将芯棒固定。中间有一小车,小车有的通过液压传动,有的通过机械传动即丝杠传动,然后往前推小车。小车推着管子顺着芯棒往前走,芯棒外有一个感应圈,把管子加热。

  加热好,然后小车把管子推下,就加工好一个。推好后,弯头要就此热状态下进行整形。因为有的弯头处理不当后,就会扭曲,这是不允许的。另外,推头后一般都是前端外径大。

  要通过整形模进行整形。整形模实际上是一个压力机,要有一套模具。

  两个半圆弧,上下各一个。整形后的外径就达到了成品的尺寸要求了。壁厚就以来料的壁厚进行控制。弯头和管子的壁厚公差都是相同的,均为±12.5%。在推制过程中,正常情况下壁厚不应当发生变化,但如果因为工具原因,有的地方会发生减壁现象。

  所以一般提料时,壁厚要加一些余量。

  如弯头是8.18mm的壁厚。

  一般都提8.5mm左右的管子,防止在推制时由于局部减厚而超差。整好形后,弯头的外径、壁厚尺寸都达到了要求。下面就进行精整工序。

  经过喷丸处理,把弯头内外表面的氧化铁皮去除。

  把两端进行坡口处理以便于焊接。再经过检查、打钢字、喷涂漆、包装等工序后。

  就可以出厂了。以上是24″以下以无缝钢管作为原料的弯头生产方法,超过24″以后即600mm以上的。

  最大弯头在2.032米~2.80米之间。

  是用钢板做的。把钢板按要求裁成料后。

  像UOE成型,也是通过冲模冲压冲成圆形。有两半然后再拼合、焊接。由于焊缝的存在,所以要进行无损探伤。由于有焊接应力的存在,所以还要进行热处理。焊接弯头多了两道工序:一是探伤。

  一是热处理。其他程序相同。

  三通的 生产工艺也基本是如此。要根据三通的不同规格进行下料。下料后先要喷砂,要在成形前将表面的氧化铁皮去除。成形则采用液压鼓胀法成形。有模具,模具底部平 直,上边有凸缘孔。将管子放入后,管子用液压缸固定,两边充入液体向内凸胀,把管挤成"凸"字形,再把凸起处从适当位置切除,也打成坡口。它要经过两次喷 丸处理。由于加工过程中,有加工硬化,所以也需要热处理。管件的生产工艺流程就是


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