Archives for July 2019

Waterjet Cutting Machine Troubleshooting Tips

 Waterjet Cutting Machine Troubleshooting Tips

Waterjet cutting machines quickly emerged as among the most versatile appliance nowadays. Homemakers are in awe with what this piece of equipment can do for them with regard to extending the shelf life of their highly perishable food items. 

In complete contrast to a thermal cutting method, according to water jet machine manufacturers, waterjet cutters can seamlessly cut through metal without having to leave behind heat-affected zone or HAZ. 

According to water jet machine manufacturers, the manner in which the method employed through the use of waterjet cutting machine works is completely different from how the thermal cutting style is carried out. They can cut through metal without producing or leaving a heat-affected zone or HAZ. This explains the reason why waterjet cutting technology is the method of choice when it comes to cutting, trimming, and shaping metal parts for construction applications and even for aerospace technology, where even the slightest changes in metallurgical attributes could affect the integrity of the material.  

Perhaps the most hardworking of all the components of a waterjet system is the intensifier.  It is comprised of numerous moving parts, and for that reason, there is a higher possibility that something could go wrong at any given time. Common issues encountered here has something to do with over stroking, short seal life, and water leaks. Three other commonly complained issue with an intensifier-based waterjet system is low water pressure, hydraulic pressure failure, and hydraulic temperature overheating. 

Overstroking

There is nothing unusual happening to it if the intensifier would strike faster during startup, as well as when transitioning between high pressure and low pressure. But under normal machine operation, the intensifier is supposed to strike smoothly to the right and left at just about the same speed as on the other.  There are occasions in which the hydraulic piston would travel way faster to just one or even in both directions, sometimes it would even exceed to more than what the pump can support. They refer to this event as over stroking, and would likely trigger the alarm. 

Irrespective of whether you see the overstroking is tending to the right or to the left, or in both directions, the best course of action you need to take is just reset the alarm. 

Regardless of whether the overstroking is tending to the left, to the right, or in both directions, the first thing you should do is reset the alarm. After which you are supposed to

  • Turn the cutting head off. 
  • Turn on the pump and let the pressure build-up on its own.
  • Now you can turn the cutting head-on. 

Keep an eye on the intensifier stroke rate using the operator interface indicator or you can manually monitor instead of the proximity switches.

Water Leaks

Another area of concern in most waterjet cutting machine is water leakage. If there is a visible water drip after every few strokes, take this as an indication that your seals are coming so close to the end of their service life. With that, you need to have a spare so you can immediately replace them, just in case. 

Should there be an obvious drip after every stroke, that calls for you to change the seals at the soonest possible time? If you have observed leaks in some other areas, take that as an indication of a worn part, damaged seat or loose-fitting. 

Presence of leaks calls for your immediate attention right away so as to prevent the nearby components from getting damaged too. You need to keep an attentive eye on the following: 

Water leaks from the cylinder end mean that the high-pressure seal from that end has failed. 

  • If there are hot water leaks from the end cap, take this as an indication that the cylinder’s static end has failed, and thus would be needing replacement. 
  • Check out for cold water leaks from the end bell, you may take this as a sign that the O-rings pointing inlet water towards the cylinder bore has just failed and thus would be requiring replacement. 
  • Check out for the weep hole’s warm water on the check valve, it might be a sign that your output adapter is loose or that your high-pressure poppet seat failed. It might also mean to say that the check valve’s seat has just cracked.  

These troubleshooting tips will help save you more money and time on a service technician, which in a way helps you to optimize your profits.  

Suggestions in Choosing the Best Caterer Sydney

Suggestions in Choosing the Best Caterer Sydney

There are just so many events to be celebrated all throughout the year. Good thing that there are a lot of catering companies that are available to provide their services to make sure that every event will be successful and memorable. Unless you are used to being in charge of events, then you will need to find the best caterer Sydney. Although this can be a challenge, with some suggestions, you can always make the right choice.

Personal References

If you are in Sydney and you are searching for the best caterer, it would help a lot if you look at referrals. You can ask your friends, family members, or people with whom you have worked with and are knowledgeable about catering companies. Ask them about their experiences in terms of the quality of food and if they have encountered some problems and how these were resolved. Of course, you can also ask them about the price of their services.

Interview

After you have listed some potential candidates, you can proceed to identifying the ones that will best suit and meet the needs of your events. As you interview the candidates, you have to focus on the place and date of the event so the caterers would be able to determine their availability. If the caterer is available to cater to your event, you can discuss the particulars like rate information and meal alternatives. You also need to know if they offer other services like setup for the event.

Personal Reference

You can use your list of caterers to gather information from their previous clients. You can have three to five names of their past clients. Then you may contact and ask questions about their experience with the catering company. You also need to make sure that the company has the right training when it comes to safety procedures and meal preparations.

Visit

It would help a lot if you can have a stop at the companies that you have listed. They will have sample that you can try. With this, you can choose what you want to be included in the menu. You need to make sure that the food tastes good and the space for the preparation is well-cleaned. You should also be able to speak with the working team to find out if there are differences that would arise.

Cost

Knowing the cost that you have to pay will allow you to make any adjustments if necessary, as well as manage unplanned fees. Be sure to ask the company of all the costs that you have to pay and there should be no hidden costs.

By considering these suggestions, you can rest assured to find the best caterer in your area. At the same time, your event will definitely be successful and memorable.