In recent years, dry ice cleaning technology has been applied to many fields. Due to its safety, high efficiency, strong cleaning power, and no pollution, dry ice blasting machines are more and more prominent in the medical industry. Let us see how dry ice blasting machine is applied to the medical industry.
The technical principle of dry ice blasting
干冰清洗机通过高压空气将干冰粒（通常为3毫米）喷射到待清洗的工作表面上，利用剧烈变化的温差使不同的物质以不同的收缩速度分离。
When the dry ice pellets at -78.5 degrees Celsius come into contact with the dirt surface, the phenomenon of embrittlement and explosion will occur, which will cause the dirt to shrink and loosen. Subsequently, the dry ice pellets will instantly vaporize and expand to 800 times, producing a strong peeling force, which will quickly remove the dirt from the surface of the object, thereby achieving a fast, efficient, safe and energy-saving cleaning effect.
Several aspects of using dry ice cleaning in the medical industry
- Catheter mold cleaning
在制造医用导管时，管的尖端和Y部分通常使用液体硅胶注射成型。所使用的模具比常规模具更加独立，型腔更小更深，生产中容易留下毛刺，导致公差不合格，废品率增加。并且需要经常清洁。
使用干冰喷射的优点：快速、简单、高效。无需拆机即可直接清洗，边角、接缝处更容易清洗。实验证实干冰清洗可以大大提高良率。
- Manufacturing of surgical tools and instruments
Surgical tools and some surgical instruments usually have a non-slip rubber handle on the upper end of the stainless steel tool part. In production, it is necessary to eliminate the mold clamping line, otherwise, the handle will not be smooth. Therefore, the application advantages of dry ice blaster machine have been successfully demonstrated again.
- Manufacturing of medical stents
医用植入支架通常由金属或塑料制成，插入人体的中空结构中以保持开放，因此生产的公差要求极其严格。此类产品具有精度高、体积小、灵活性好等特点。生产难点在于模具的清洁度要求高。模具非常精密且非常昂贵，而且处理产品的固定装置也很脆弱。干冰清洗机可用于在线清洗模具。简单高效，不会损坏模具，不会损坏治具和产品，无残留，无害。