Thursday, April 30, 2015

Sand Blasting Nozzles for surface finishing of metal parts

Sand blasting nozzles are available in Boron carbide as well Tungston carbide in various shapes & sizes such as Straight bore, Ventury bore as well Angular bore. Mny sizes are readily available. Please view the Video below to understand about our sand blasting nozzles :

Butterfly Valves Video

Butter Fly Valves

Butterfly Valves
VOHRRAS INTERNATIONAL
vohraindia@yahoo.com 

Tuesday, April 14, 2015

ASUS Zenfone 2 : my latest smart phone

I have to purchase a smart phone and I was looking into the market for the latest one. One of my friend told me about the launch of ASUS Zenfone 2. It raised my curiosity & I just tried to GOOGLE it. The first thing I found on the net was a video depicting the latest ASUS Zenfone 2 : The Next Zen – ASUS Zenfone 2 , as below :


It really impressed me as it was a yet to be launched, new smart phone from ASUS with a nice and bigger camera of 13 MP allowing you to see what others can’t as we can take a pic, even in the dark, even without a flash light and the outcome is the brightness upto 400%. What a camera or better to say, what a smart phone. I made my mind to do further in depth research over it as it looked perfect for clicking Selfie with 5 MP. Moreover it was capable for multiple shots as well HD to view videos.

With intel processor, it offers a 4 GB RAM which is equally exciting as you can work more easily without any slowdown hinderances. Moreover, it’s the first mobile in the market that has offered the 4 GB Ram.

It has dual SIM, Dual Active, 4G Lte, so advanced & latest one as almost all the service providers are now converting their 3G services into the 4G. It means there was no risk of any obsolete 3G technology and suitable to move ahead of others who are still using the old handsets.

One of the common problem while using a smart mobile is that it consumes a lot of battery and therefore, it must be regularly or timely charged. My research over the internet revealed that it can be charged upto 60% in just 39 minutes. Does it mean that it will be fully charged in almost an hour or so. Must  be checked.

And it really looked a smart phone. What I mean to say is that while you search for the smart phones, they are named as a smart phone but they don’t generally look smarter. The ASUS zenfone 2 looked much amarter in the vid as above and it seemed that its quite possible that it will redefine my experiences of using a smart phone.

I thought of taking my research over this smart phone to the next level & I googled again to look for its website.  I found the link as below : http://www.asus.com/Phones/ZenFone_2_ZE551ML/. The website is self explanatory & has given every minute detail about the handset. I found the phone to be really smart, with bigger in size,

The crux is that I have decided to go for this handset. I came to know that it will be launched on this 23rd April & therefore I have to wait for yet another 10 days for the handset, though in reality, I can’t wait any more for it. But I am really happy that my friend has guided me in the right direction and seems I have taken a right decision. I am now waiting for the day when ASUS Zenfone 2 will be in my hands.

Wednesday, April 8, 2015

Shot Blasting machines for Aluminium Die castings

Shot blasting machines for Aluminium die castings, Brass & Gun metal parts are available in various models such as Tumblast, Table, Hanger & Continuous conveyor models. 

In Tumblast, a conveyor belt rotates inwards, inside the chamber of the shot blasting machine & the components are loaded on it as per the size & capacity of the machine. The door is than closed. Rotor is switched on for throwing Shots or Grits on the components. By this process, the loaded components get a universal finish. Abrasive medias such as Shots or Grits are continuously fed by the elevator of abrasive media. All the dust extracted in the process goes to the attached dust collector. On completion of desired time period, the door is opened & than the conveyor belt is driven outwards. As a result the components can be removed from the chamber. An automatic loading system can also be attached to the shot / grit blasting machine.

The Tumblast shot blasting machines are available in many sizes, right from a 2 cu ft capacity machine to a 15 & 20 cu ft capacity machines. Some of the sizes are: 20" x 27", 20" x 42", 27" x 36", 30" x 43", 36" x 42", 42" x 42" as well 48" x 48".

Similarly, Hanger model Shot blasting machines are available in Single / Double door type, Centralised hanger type as well a monorail type. In this model, the components are hanged instead of loading on the conveyor belt. Rest of the process is same. The hanger rotates for a universal finish using multiple rotors depending upon requirement. The benefit is that the components do not touch each other in the process of finishing and hence are scratch free.

Swing table model shot blasting machines are suitable for bigger or heavier components or if the smaller parts are to be shot blasted only one side. Many sizes are available from a minimum 36" of table to 120" of table in sngle as well double doors.

Continuous conveyor model shot blasting machines are suitable for smaller components which are to be shot blasted only one side with a single rotor. Multiple sides can be finished by using multiple rotors. Components are fed from one side & removed from the other side duly finished.

The spare parts for shot blasting machines, mostly wearable are made from ni hard or alloy steel to get the maximum life.The main spare parts include the Rotor, Blades, Spring locks, Cage & Impeller, Cage adapter, centre plate, Top segment, Side liners, Round plates as well the conveyor belt. Few precautions are necessary while running the machine.

The Tumblast model of Shot blasting machine if to be used for finishing of smaller components is best suitable and very cost effective. we can be contacted with details of your components for a suitable size & model of shot blasting machine.

Shot blasting of Brass components

Since last over 25 years we get repeated & regular calls from our old & new and would be clients for the finishing of metal parts. It may be castings, forgings, aluminium die castings, zinc die castings, brass components, gun metal parts, tempered components or the sheet metal parts.

I remember a customer who visited me from Agra, almost 10 years ago, for the Finishing of brass hinges. He brought few samples with him. Moreover he could not tell me about the type of finish he required. He just asked for a better finish.








Though i could easily offer different type of finishes by using either a vibratory finishing machine OR a suction blasting machine i.e. sand blasting machine with a suction blasting gun as well a wet blaster. But i knew he had the bulk of material & a single machine won't be enough for him to meet the targets.

So i took him to my works for a trial on our Airless Shot Blasting machine for Brass components i.e. Tumblast model. We did a bit of adjustments in the machine and changed the abrasive media to a desired size & quality & asked the client to come inside the workshop.

























His samples were loaded in the machine & we did the shot blasting for few minutes. The minute we opened the door of the machine, our client looked more than happy. Amazing results were clearly visible on the Brass Hinge as well on the face of the client. He immediately placed the order with us & took the delivery as desired.

Friends, if you have any such component, that may be castings, forgings, aluminium die castings, zinc die castings, brass components, gun metal parts, tempered components or the sheet metal parts, for which you are looking for a better finish, just call us, just come to us. We have a wide range of latest machines for Deburring, Polishing & Finishing of all types of metal components.

Surface finishing machines for cleaning, finishing, deburring & polishing of metal components

Metal components must be Deburred, Cleaned & Finished, before affixing them into any of the bigger mechanism. These metal components may be the sand castings, forgings, aluminium die castings, zinc die castings, brass & gun metal parts, sheet metal or tempered components.

In the earlier days, people used the Tumbling barrels, loaded with leather particles ( even now being used at many places ) for cleaning & finishing of metal parts. Later the Vibratory finishing machines, Centrifugal finishing machines, Drag finishing machines as well the Roll Flow finishing machines came into operation. Various types of ceramic stones, plastic stones, stainless steel media, walnut shells, glass beads are used in this type of machines for deburring & polishing of metal components.

Similarly, Rotary barrel shot blasting machines came into existence in the earlier days for abrasive blasting on metal parts for cleaning & finishing. Later the horizontal model of Shot Blasting machines came into action such as Tumblast shot blasting, Table shot blasting, Hanger shot blasting & the continuous conveyor shot blasting machines. These machines have a centrifugal blasting rotor that rotates mechanically, whie throwing steel balls, normally called shots or grits, on the components for the finishing.

Sand blasting machines are also available in portable models as well the cabinet models. The cabinet model of sand blasting machines include various models such as pressure blasting, suction blasting as well the wet blasting machines. These machines can be used to clean & finish any specific area of a metal component also. Sand blasting nozzles of boron carbide & tungsten carbide are used in these machines & these are operated by the air pressure provided by a compressor. Sand blasting as well glass etching is also being done now a days on glass, by using these sand blasting machines. Various types of abrasive medias such as aluminium oxide, glass beads, river sand, shots, grits, plastic abrasive, garnet etc can be used in these machines.


The latest in surface finishing machines include the Thermal deburring machines, Electro chemical deburring machines, Dry ice blast cleaning machines, Micro sand blasting machines & a lot more. More details can be viewed in the Directory of Finishing machines which offers a wide range of machines as above.