Split Cotter Pins

分体开口销通常由不锈钢、碳钢或黄铜制成，每种类型都有其优势。不锈钢的防锈器在容易生锈的地方效果很好，因为它们耐腐蚀且寿命长。碳钢开口销通常涂有涂层或镀锌，强度大且价格不高。黄铜开口销适合电气工作，因为它们不会产生火花。

选择合适的材料意味着这些销钉能够承受极端温度、化学物质以及各种重量或应力。工厂生产的尺寸精确且表面光滑，这样它们不会磨损所连接的部件。而且因为它们采用不同材料，符合ASTM或DIN等行业标准。

应用

分体开口销广泛应用于需要半永久且牢固固定零件的机器中。在汽车中，它们固定轮毂轴承、刹车部件和悬挂部件。航空航天工业则用于控制连杆和需要固定的起落架部件。船只和海洋设备也使用开口销，它们的防锈性有助于固定索具和螺旋桨轴。即使是DIY爱好者在修理自行车、拖车或组装家具时也会用它们。

它们在农机、建筑设备和火车中很重要，因为它们有助于防止重大且危险的故障。无论你是在家修理东西，还是在进行大型工业项目，开口销都能确保物品安全并正常工作。

选择尺寸

问：我如何确定适合我应用的分体开口销的正确尺寸？

答：选择合适的开口销取决于孔的直径以及需要承受的重量。首先，测量安装销钉的孔，销钉的直径应该和孔非常接近。长度也很重要：需要让两端分叉都足够突出，这样才能弯曲它们以锁定所有部件。比如，如果孔宽3毫米，就用直径3毫米的开口销。

查查工程图，看看分体销能承受多少负载，或者直接告诉供应商你用它做什么。别用太小的销子，如果尺寸太小，可能会在压力下断裂。

Split Cotter Pins come in a few common metal materials. You just pick one based on where you’ll use the pins and how strong they need to be.

Low-carbon steel is the most commonly used. It’s easy to work with, has enough flexibility to split and lock properly, and doesn’t cost much.

Most low-carbon steel pins get a surface treatment—either galvanizing or zinc plating—to stop them from rusting.

If you need pins that resist rust better, stainless steel is an option. The common types are 304 and 316.

304 stainless steel works fine for indoor use or mild outdoor conditions. 316 is better at standing up to saltwater and chemicals, so it’s good for marine or coastal projects.

These stainless steel pins don’t need any extra surface treatment; they’re rust-resistant on their own.

There are also lighter carbon steel versions for light-duty jobs. They’re thinner and not as heavy.

所有这些材料都经过基本的弯曲和切割工艺。这样可以确保销的分叉端可以轻松打开而不断裂。

Q: How to store Split Cotter Pins to avoid damage?

A: Store Split Cotter Pins in a dry, well-ventilated area away from moisture and direct sunlight. Keep them in their original packaging to prevent scratches and rust. For galvanized or stainless steel Split Cotter Pins, avoid contact with acidic or alkaline substances. Proper storage can extend their shelf life to 6-12 months for carbon steel and longer for stainless steel.