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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.

  按彎頭規(guī)格下料,再考慮曲率半徑, 比如。

  90°的彎頭,通過其曲率可以算出下多長料可加工出90°的彎頭。通過理論計(jì)算可算出,然后以該長度為定尺進(jìn)行切斷。最后把料進(jìn)行熱推制。推制機(jī)大家可能都看過,實(shí)際很簡單。它是一個(gè)牛角狀芯頭或芯棒。

  芯棒由細(xì)變粗,推制過程是一個(gè)擴(kuò)徑帶彎曲的過程。后邊有支撐,把下料管段穿入芯棒。

  后邊有一牌坊架將芯棒固定。中間有一小車,小車有的通過液壓傳動(dòng),有的通過機(jī)械傳動(dòng)即絲杠傳動(dòng),然后往前推小車。小車推著管子順著芯棒往前走,芯棒外有一個(gè)感應(yīng)圈,把管子加熱。

  加熱好,然后小車把管子推下,就加工好一個(gè)。推好后,彎頭要就此熱狀態(tài)下進(jìn)行整形。因?yàn)橛械膹濐^處理不當(dāng)后,就會(huì)扭曲,這是不允許的。另外,推頭后一般都是前端外徑大。

  要通過整形模進(jìn)行整形。整形模實(shí)際上是一個(gè)壓力機(jī),要有一套模具。

  兩個(gè)半圓弧,上下各一個(gè)。整形后的外徑就達(dá)到了成品的尺寸要求了。壁厚就以來料的壁厚進(jìn)行控制。彎頭和管子的壁厚公差都是相同的,均為±12.5%。在推制過程中,正常情況下壁厚不應(yīng)當(dāng)發(fā)生變化,但如果因?yàn)楣ぞ咴颍械牡胤綍?huì)發(fā)生減壁現(xiàn)象。

  所以一般提料時(shí),壁厚要加一些余量。

  如彎頭是8.18mm的壁厚。

  一般都提8.5mm左右的管子,防止在推制時(shí)由于局部減厚而超差。整好形后,彎頭的外徑、壁厚尺寸都達(dá)到了要求。下面就進(jìn)行精整工序。

  經(jīng)過噴丸處理,把彎頭內(nèi)外表面的氧化鐵皮去除。

  把兩端進(jìn)行坡口處理以便于焊接。再經(jīng)過檢查、打鋼字、噴涂漆、包裝等工序后。

  就可以出廠了。以上是24″以下以無縫鋼管作為原料的彎頭生產(chǎn)方法,超過24″以后即600mm以上的。

  最大彎頭在2.032米~2.80米之間。

  是用鋼板做的。把鋼板按要求裁成料后。

  像UOE成型,也是通過沖模沖壓沖成圓形。有兩半然后再拼合、焊接。由于焊縫的存在,所以要進(jìn)行無損探傷。由于有焊接應(yīng)力的存在,所以還要進(jìn)行熱處理。焊接彎頭多了兩道工序:一是探傷。

  一是熱處理。其他程序相同。

  三通的 生產(chǎn)工藝也基本是如此。要根據(jù)三通的不同規(guī)格進(jìn)行下料。下料后先要噴砂,要在成形前將表面的氧化鐵皮去除。成形則采用液壓鼓脹法成形。有模具,模具底部平 直,上邊有凸緣孔。將管子放入后,管子用液壓缸固定,兩邊充入液體向內(nèi)凸脹,把管擠成"凸"字形,再把凸起處從適當(dāng)位置切除,也打成坡口。它要經(jīng)過兩次噴 丸處理。由于加工過程中,有加工硬化,所以也需要熱處理。管件的生產(chǎn)工藝流程就是


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