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铝合门窗C槽与U槽的差异在哪里？

Where is the difference between the C slot and the U slot of the aluminum door and window?

C槽与U槽的由来

The origin of the C slot and the U slot

铝合金门窗的使用源于欧洲铝合金门窗系统的引入，在欧洲的铝合金门窗系统中只有欧洲标准槽口一种铝合金专用五金槽口，即现在中国市场上所谓的C槽;U型五金槽口是塑钢门窗欧洲标准槽口。

The use of aluminum alloy doors and windows is due to the introduction of the European aluminum alloy door and window system. In the European aluminum alloy door and window system, only the European standard slot is a kind of aluminum alloy special hardware slot, which is now the so-called C slot in the Chinese market, and the U type hardware slot is the European standard slot of the plastic steel doors and windows.

由于铝合金门窗五金的材质和构造的特殊要求导致铝合金门窗五金价格偏高，而塑钢门窗五金价格要比铝合金门窗五金低约40%，所以就有铝合金型材厂家将塑钢门窗的五金槽口移植到铝合金门窗型材上的现象，也就出现了铝合金门窗的U型槽口。

Because of the special requirements of the material and structure of the aluminum alloy door and window hardware, the price of the aluminum alloy door and window hardware is high, and the price of the hardware of the plastic steel door and window is about 40% lower than that of the aluminum alloy door and window hardware, so there is a phenomenon that the aluminum alloy profile manufacturers transplant the metal slot of the plastic door and window to the aluminum alloy door and window profiles. The U slot of the golden door window.

欧洲铝合金门窗系统不使用U型槽口

The European aluminum alloy door and window system does not use U slot

原因有以下几点：

The reasons are as follows:

1U型槽口的五金设计原理 U型槽口(五金)在欧洲是针对塑料门窗和木门窗的专用五金槽口，U型槽口的五金连接方式采用自攻螺钉螺接的方式安装五金件。

1U slot hardware design principle U slot (hardware) in Europe is a special hardware slot for plastic doors and windows and door windows. The hardware connection of the U slot is installed by the self tapping screw.

但是如果应用在铝合金门窗上，当安装U槽五金用的自攻螺钉承载由门窗开关所产生的纵向剪切力时，由于自攻钉的硬度远远大于铝合金型材，自攻钉的螺扣就会对铝合金型材产生破坏，造成安装孔扩大，长此以往五金件的螺钉连接就会出现脱扣。

But if the application is on the aluminum alloy doors and windows, when the self tapping screw for the U slot hardware is loaded with the longitudinal shear force produced by the door and window switch, because the hardness of the self tapping nail is far greater than the aluminum alloy profile, the screw buckle of the self tapping will destroy the aluminum alloy profile, resulting in the expansion of the mounting hole and the screw of the hardware. The connection will come out.

由于塑钢门窗的内衬为钢才，材料硬度与自攻钉相等不会发生安装孔扩大和五金件脱扣现象。

Because the lining of plastic steel doors and windows is steel, the hardness of material and the self tapping pin are equal, and the installation hole enlargement and hardware tripping will not occur.

由于U型槽口(五金)应用在铝合金门窗上不符合机械设计中的机械材料等强设计原理，出于对门窗五金安全性的考虑，欧洲铝合金门窗不采用U型槽口(五金)。

Because the application of U slot (hardware) on aluminum alloy doors and windows does not conform to the mechanical design principle of mechanical material in mechanical design, the European aluminum alloy doors and windows do not use the U slot (hardware) for the safety of the door and window hardware.

2U型槽口的五金导致铝合金门窗腐蚀渗水

2U-notch metal causes corrosion and seepage of aluminum alloy doors and windows

U型槽口五金的材质只要为钢，当五金件通过钢制自攻钉连接到铝型材上当受到雨水和潮湿空气的侵蚀时会发生较明显的化学反应(俗话说的结碱现象)影响门窗的使用，破坏门窗的防水构造。

As long as the material of the U slot hardware is made of steel, when the hardware is connected to the aluminum material through the steel tapping nail to the aluminum material, it will have a more obvious chemical reaction when it is eroded by the rain and wet air (the common saying that the alkali phenomenon) affects the use of doors and windows, and destroys the waterproof structure of the doors and windows.

3C型槽口五金设计原理先进 C型槽口五金安装是依靠不锈钢钉顶紧力和机螺钉不锈钢衬片与五金槽口夹紧力来保障五金件的安装牢固度，不锈钢钉顶紧会在型材表面产生约0.5～1.0毫米的局部变形使不锈钢钉与铝型材紧密的结合在一起保障五金件在受力时不发生位移。

3C slot hardware design principle advanced C slot hardware installation is to rely on stainless steel nail top force and screw stainless steel liner and hardware slot clamping force to guarantee hardware installation firmness, stainless steel nail top will produce about 0.5 to 1 millimeter local deformation on the profile surface, so that the stainless steel nail and aluminum profile are closely combined in Together to ensure that the hardware does not displace when stressed.

4C型槽口五金安装方便 不用打安装孔，不采用自攻钉连接，安装简便，对设备等(电、气)辅助条件的依赖低，可以实现现场安装。

4C slot hardware installation is easy to install without installing the installation hole, does not use the self tapping screw connection, the installation is simple, the equipment and so on (electricity, gas) auxiliary condition dependence is low, can realize the site installation.

5材质对比 C型槽口五金是专用的铝合金(金属)门窗五金，而U型槽口五金源于塑料门窗，从材质的要求到五金杆件的硬度要求都要低于C型槽口五金。

5 material contrast C slot hardware is a special aluminum alloy (metal) door and window hardware, and U slot hardware source from plastic doors and windows, from the requirements of the material to the hardness requirements of the hardware members are lower than the C slot hardware.

例如：C型槽口五金的五金材质主要为挤出铝、锌基压铸合金、炭氮共渗钢、不锈钢、二硫化钼尼龙，表面处理为达克罗表面处理、RAL表面彩色喷涂(与法拉利底盘防腐处理相同)，经过严格的耐腐蚀试验，不会发生结碱现象。

For example, the hardware material of C slot hardware is mainly extruded aluminum, zinc base die-casting alloy, carbon nitrogen co permeable steel, stainless steel and molybdenum disulfide nylon. The surface treatment is dacrom surface treatment, RAL surface color spraying (the same as Ferrari chassis anticorrosion treatment). After strict corrosion resistance test, no alkali knot phenomenon occurs.

6C型槽口五金的连接构造安全性 C型槽口铰链采用高硬度的不锈钢衬片(该衬片采用特殊的构造)，在紧固螺钉拧紧时衬片上的特殊构造将像牙齿一样咬入铝合金型材的表面，形成若干0.2～0.5mm的局部变形(小坑)，从而保证了窗扇的安全性能，杜绝由连接螺钉与铝型材硬度不等产生脱扣而出现平开窗(门)的窗(门)扇脱落现象。

6C slot hardware connection structure safety C groove hinge adopts high hardness stainless steel liner (the lining adopts special structure). The special structure on the lining piece of the fastening screw will bite the surface of the aluminum alloy section like the tooth, forming a number of 0.2 ~ 0.5mm local deformation (small pit), thus ensuring the window sash. The safety performance can eliminate the falling off of the window (door) fan which causes the flat window (door) to be tripped from the hardness difference between the connecting screw and the aluminum profile.