01开齿

　　01 Open teeth

　　用开齿机将铝型材上要穿隔热条的部分滚出齿来，目的就是为了增加型材的粗糙度从而提高复合后型材的剪切力，相当于有一排“牙齿”咬住了隔热条。

　　Using a gear hobbing machine to roll out the part of the aluminum profile that needs to be fitted with insulation strips, the purpose is to increase the roughness of the profile and improve the shear force of the composite profile, which is equivalent to a row of "teeth" biting the insulation strips.

　　开齿过程中“齿”的深度是关键。开齿深度需在0.6mm左右，齿距1.0mm左右，每个齿肩到肩的距离约0.4mm，齿锋形状呈牛角状

　　The depth of the teeth is crucial during the tooth opening process. The tooth opening depth should be around 0.6mm, the tooth pitch should be around 1.0mm, and the distance from each tooth shoulder to shoulder should be about 0.4mm. The tooth tip shape should be in the shape of a cow horn

　　另外，开齿盘的定位在夹头槽口间要注意略偏外夹头，外夹头上要有深而锋利的齿纹。

　　In addition, the positioning of the toothed disc between the chuck slots should be slightly offset from the outer chuck, and there should be deep and sharp teeth on the outer chuck.

　　好的开齿能让型材复合紧密，如此一来，气密性、水密性，型材的机械性能自然好。

　　A good tooth opening can make the profile composite tightly, so that the air tightness, water tightness, and mechanical properties of the profile are naturally good.

　　02穿条

　　02 Wearing strips

　　穿条就是将隔热条穿入已经开好齿的上下两支铝材槽口中，使三者合为一体。有些企业会将穿条工序整合在开齿机中，即在开齿的过程中就将隔热条穿入铝材中。穿条后隔热条和铝材之间没有紧密结合，条是可以抽动的。隔热条由电机带动的一组齿形轮驱动向前穿入上下铝材的槽口中完成穿条，有时候铝材穿条两槽口中心距离小于10mm的铝材，这种情况就很难用穿条机直接穿条，只能人工手动穿条了。

　　Wearing a strip is to insert the insulation strip into the upper and lower aluminum slots that have already been toothed, so that the three are integrated. Some companies will integrate the threading process into the gear cutting machine, that is, threading the insulation strip into the aluminum material during the gear cutting process. After wearing the strip, there is no tight bond between the insulation strip and the aluminum material, and the strip can be pulled. The insulation strip is driven forward by a set of toothed wheels driven by a motor and inserted into the slots of the upper and lower aluminum materials to complete the threading. Sometimes, when the distance between the centers of the two slots of the aluminum material threading strip is less than 10mm, it is difficult to directly thread the strip with a threading machine and can only be manually threaded.

　　03滚压

　　03 Rolling

　　滚压就是用三组硬质滚压轮，将穿有隔热条的铝合金型材压合。三组滚压轮分别起到预压、压紧和校正的作用。

　　Rolling is the process of pressing aluminum alloy profiles with insulation strips together using three sets of hard rolling wheels. The three sets of rolling wheels respectively play the roles of pre pressing, compression, and correction.

　　怎么看滚压效果好不好呢？内夹头保证隔热条垂直就位，外夹头齿纹压入隔热条。滚压合格的型材一定会整体外形良好，气密性、水密性和机械性能达标

　　How to check if the rolling effect is good or not? The inner clamp ensures that the insulation strip is vertically positioned, while the outer clamp teeth are pressed into the insulation strip. Qualified profiles produced by rolling will definitely have a good overall appearance, and meet the standards for air tightness, water tightness, and mechanical properties

　　04剪切力测试

　　04 Shear force test

　　可能很多人认为穿条工艺到上一个步骤就结束了，No，No，没通过剪切力测试的隔热型材就是一盘散沙，不用扒拉两下就散了。

　　Many people may think that the threading process ends with the previous step. No, no, insulation profiles that fail the shear force test are just a pile of loose sand that doesn't need to be pulled or peeled twice.

　　测试步骤很简单，给复合型材纵向上施加不断增加的力，直到铝型材与隔热条之间发生错位为止。另外，这项检测不是测一次就行的，得测试10个100mm的试样，过程中要注意上下夹块不能夹到隔热条。检测型材剪切力强度，就是检测隔热条与铝型材结合的强度。国标规定，隔热型材的纵向抗剪强度特征值应该大于24N/mm。

　　The testing procedure is simple, apply increasing force longitudinally to the composite profile until there is a misalignment between the aluminum profile and the insulation strip. In addition, this test is not just a one-time test, 10 100mm samples need to be tested. During the process, it is important to note that the upper and lower clamping blocks cannot clamp onto the insulation strip. Detecting the shear strength of profiles is to measure the strength of the bonding between insulation strips and aluminum profiles. According to national standards, the longitudinal shear strength characteristic value of insulation profiles should be greater than 24N/mm.

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