5个重要的液压缸重建技巧

压力下降, 过度的泄漏, 可见骨折, 裂缝, 或活塞或活塞杆上的凹痕, 破碎的海豹, or corrosion anywhere on the cylinder are all easily-identifiable signs that a rebuild may be required. 然而, you’ll only know the extent of the damage once the entire cylinder is disassembled 和 inspected.

If a rebuild is required for your cylinder, it’s important that it’s done correctly. Mistakes during rebuilds can result in personal injuries 和 damage to the cylinder itself. An improper rebuild will also reduce the cylinder’s overall lifespan 和 cost you more money than necessary. 

当执行a 液压缸改造，你需要遵循以下五个关键提示:

提示1:总是拆卸 & 彻底检查汽缸

如前所述, disassembling the cylinder is the only way to determine whether a rebuild or small part replacement is necessary. If more than one component is failing or badly damaged, 重建通常是经济有效的选择.

When disassembling a hydraulic cylinder, you’ll want to drain all the oil out of it first. After you drain the oil, you can carefully disassemble the cylinder. 你得检查一下汽缸筒, 帽, 活塞, 并彻底清洁活塞杆的所有表面.

Look for evidence of ripped hoses or pinched O-rings, 扣环, 刮水器, 或活塞密封, as these are the most common causes of cylinder failures. Any pinched or torn seals on the 活塞 rod can indicate that the rod might be bent.

Perform a visual inspection to identify marks, scratches, or other noticeable defects on components. 一定要把每一个都标上. Fatigue 裂缝 along the cylinder can quickly lead to crack propagation once the cylinder is in use. 如果没有及时发现, 裂缝 can easily lead to a system-wide equipment shutdown or catastrophic failure.

If you can perform a non-destructive test like dye-penetrant inspection (DPI), then do so on each part to ensure no micro-fissures are present on the surface of any given piece.

技巧2:确保你有正确的工具

Always ensure that you have the right tools 和 that they are in good working order. Some tools you may need for a cylinder rebuild include calibrated torque wrenches, 螺丝刀, 密封维修套件, 橡胶球棍, 钳, 还有无纺布衣服.

Using tools that aren’t clean or properly working can inadvertently cause damage to cylinder components. Even something as minor as a small scratch or dent on a given component’s surface can eventually lead to corrosion of that part 和 the entire cylinder.

技巧3:总是调整你的封条大小

If you’ve found yourself constantly replacing a seal or O-ring, it could be due to the grooves in the seal being improperly machined, 密封间隙不够, or the seals themselves weren’t correctly fitted/sized.

When replacing seals, please don’t make the all-too-common mistake of measuring their current size. Seals 和 O-rings exp和 at high temperatures 和 shrink at low temperatures. Always base your measurements on the seal grooves for each seal 和 O-ring location.

Improperly fitting seals can easily lead to excess oil 和 fluid build-up, damaging the 活塞 rod 和 bearings 和 potentially allowing corrosion to impact the entire hydraulic cylinder.

技巧4:不要跳过测试

One of the biggest mistakes people make when rebuilding a hydraulic cylinder is putting it back into service without testing it. 不要犯这样的错误. After you’ve reassembled all components, properly test the hydraulic cylinder with new oil. The oil you use should match the hydraulic cylinder’s specifications.

The most common do-it-yourself test includes the end-of-stroke bypass test. 如果你遵循这个方法, pressurize the cylinder with the new oil (not air), 和 then look for any oil leakage around the seal at the end of the cylinder’s stroke.

提示5:让专业人士处理你的重建工作

One of the issues with performing a 液压缸改造 is that several potential problems aren’t visible to the naked eye. Visual inspections can catch some defects, but not all. It takes a specific skill set 和 expertise to get the job done right the first time.

If you need help with a 液压缸改造，向专业人士求助. 这样你可以节省时间、金钱和压力. 专业人士会有合适的工具, 经验丰富的技师, 和 high-quality replacement components 和 will ensure your cylinder operates efficiently after the rebuild.

Turn to Yates sb沙巴体育投注 for Professional Rebuilds

成立于1972年, Yates sb沙巴体育投注 is an ISO 9001-certified hydraulic cylinder manufacturer 和 rebuilder, 服务各行各业的客户. We proudly offer 24/7 hydraulic cylinder repair services 和 rebuilds. 建国以来, we’ve exp和ed our 帽abilities to include in-house welding, 高精度加工, 和无损检测. Every cylinder we rebuild is thoroughly cycle-tested to its original pressure rating. 

立即sb沙巴体育投注 if you want to learn more about our 帽abilities or need to request a quote.