Published on 3/16/2017
Categories: Insider tips, Maintenance
Tags: Test

Maintenance procedures: leak detection in vacuum furnaces

Successful use of a vacuum furnace depends ultimately on the purity and reliability of its vacuum. There are numerous factors that can play into why a furnace is leaking, and the first step towards fixing the problem is to identify its root cause. Let’s take a look to some practical tips on how to find a furnace leak by using a helium leak detector.

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Published on 2/13/2017
Categories: Insider tips, Maintenance

Roughing pump in high-vacuum furnaces for beginners #2

This is the second part of the article on roughing pump operation in high-vacuum furnaces. It gives an overall picture of the situations due to malfunction of the pumping system. Nonetheless, it provides practical tips on how to deal with the presence of water in the pump, the formation of oil sludge, and the improper use of lubricated roughing pumps.

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Published on 1/26/2017
Categories: Insider tips, Maintenance

Roughing pump in high-vacuum furnaces for beginners #1

For maximum performance and reliability, it is necessary to know how the pumping system of your furnace operates, the pros and cons of the different types of vacuum pumps. This is the first part of an article on roughing pump operation in high vacuum furnaces. Understanding how it works is the first step to make the right choices that will take into account also the reduction in operating costs.

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Published on 1/16/2017
Categories: Insider tips

Hot-wall vs cold-wall vacuum furnaces: which one to choose

The demands of heat treatment industry are for higher temperatures, lower pressures, rapid heating and cooling capabilities, and higher production rates.  This has inevitably led to the use of so-called “cold-wall” vacuum furnaces, to the detriment of hot-wall furnaces, which are now considered obsolete. So, let’s see hot-wall and cold-wall furnaces - what could these be and how do they differ from each other?

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Published on 12/16/2016
Categories: Insider tips

Vacuum furnace hot zone: graphite vs all-metal design #2

Keeping furnace downtime to an absolute minimum also means to be able to make the right choice of hot zone. In fact, the hot zone contributes to the performance of the whole system. It has an impact on the process quality, the temperature uniformity, the heating and cooling rates and the furnace's energy consumption. Therefore, which is the hot zone most economical and best performing based on losses and overall power costs? Graphite-based or all-metal design?

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