Friday, September 23, 2016

2016.9.23 Dymco’s Metal Belt and Metal Belt Conveyor

We feel Autumn atmosphere these days in Japan.  How about in your region?

Now, we often hear problems of  uneven surface with resin or rubber belts.  Our stainless steel belts have capabilities to make remakable improvements, for we employ butt welding.  Thickness of welding line is almost same as belt parent material.
Mirror surface is also possible by polishing.  And metal belts can be used in both heating and cooling environment.
These features of metal belts work best in forming films for electronic parts, paper lamination or drying, cooling, and making uniform shape of resin or rubber sheets.
Right: Lamination of films by double steelbelts
Left: Film forming by a blue cooler and the steel belt
Please do not hesitate to contact us if you need some further information on our products.


Wednesday, September 14, 2016

2016.9.14 How to Use Metal Belts

Dymco has been receiving quite a lot of inquiry about steel belt and its application. These are, for example, the design limit of customized steel belt, the best suitable steel belt for the custom-made conveyor, hands-on advise for the usage of steel belt, and so on. Every single inquiry has been answered from Dymco sales person based on job accomplishment experience and engineering person’s comment. Avoiding bother to prepare inquiry sheet, a simple and easy way to obtain quick information is to visit Belt Engineering of Dymco web site.

Prepared menu is as follows;

1. Mechanical properties of steel belts (spring type stainless steel)
When you have great interests in steel belt technology, please come and visit us.


Friday, September 9, 2016

2016.9.9 See you at N-Plus exhibition in Tokyo.

We are attending N-Plus exhibition held at Tokyo Big Sight from Sep. 28th - 30th.

N-Plus is an exhibition of materials and technologies in manufacturing field, focused on “advanced performance” and “higher value”.


This exhibition is a cross-industry exhibition. It aims to enable both of the visitors and the exhibitors from various industrial fields to find out the new business opportunities under a common goal; developing the new products with “advanced performance” and “higher value”.
N-Plus consists of several specialized exhibitions. Each follows the concepts listed below.
-  Lightweight High-Strength Materials
-  Carbon Fiber Processing
-  Plastic Film
-  Adhesion Joining Fastening
-  Coating Technology
-  Heat Resistance and Dissipation Technology 
-  Soft Material Technology
-  Nanoimprint Lithography

N-Plus info;
 Show Period: Sep. 28– Sep. 30, 2016     10:00 - 17:00
 Venue: Tokyo Big Sight, East Hall
 Dymco Exhibition Booth: M-12, East Hall 3
We are going to display the products below.
- Suction/vacuum conveyer
- Double belt press and heating conveyer
- Electroformed nickel sleeve, flow forming stainless sleeve
- Micro-pattern mold belt
- Air roll
- Air bearing inertia roll
This is the great opportunity for all viswitors to learn our latest products and technology and to have direct communication with Dymco.
We are looking forward to seeing you at N-Plus.



Friday, September 2, 2016

2016.9.2 Stainless Steel Belt Material for the Double Steel Belts Press and Heat Conveyor

Double steel belt press and heat conveyor heats and presses material at the same time.

These process makes curled material flat, forms thermosetting material, impregnates thermoplastic resin, or transfer sublimable ink - printed images.

Belts need to stand temperature of 250 degrees C, pressure of 2kgf/㎠ and tension at the same time.
Metal belts are the right one, not plastic or rubber belts, in these conditions.  Especially Dymco orders a steel maker spring type of special steel for this application. 
This makes much difference in tensile strength along the welded area.  In general tensile strength of welded areas goes down by 30 to 40% compared with parent material.  However special steel keeps strength of parent material even in welded areas!
Take a look at SUS 304 spring type, the most popular metal belt material.
Tensile strength in parent material is around 1200N/㎟ and just around 750N/㎟  in welded areas!
If you need tough belts, please consult us.


Friday, July 8, 2016

Traial of Invar Belt, Low-Heat-Expansion-Ratio Metal Belt

Invar is a kind of Nickel alloy and its heat expansion ratio is remarkably low.
Comapare with steel, it is below one tenth and with SUS 304, it is on 17th.
The name 'invar' comes from 'invariable.'
This great feature was discovered by Switzland physician in 1897.
It was found then that the lowest heat expantion is realized when steel includes 36% of Nickel.
Expansion ratio depending on Nickel percentage
(X: Nickel Percentage in Nickel steel, Y: Expansion Ratio)
So far flatness has been evaluated as features of metal belts and belts have been used in a wide range of industries such as chemical, food, medical, semi-doncuctors, printing, automobiles and plastics.  And we see increase of particular requests on flatness in heat environment like 200 to 300 degrees.  In such heat conditions, low heat expansion belt material like this invar is quite important. 


Invar Welded Sleeve
DYMCO continues research on belt materila so that we can present solutions to your requirements.

Thursday, April 28, 2016

Metal Tape High Precision Intermittent Drive

We receive many inquiries on how to realize high-speed and high-precision intermittent drive.

We propose positioning drive by belt holes and pully pins arranged with regular angles like illustration below.  This positioning is possible by rigid metal belt.

Metal Belt Intermittent Drive by Sprocket Pulleys
Blue line is a metal belt.

Discussion on this drive starts with the customer's application.  We send an inquiry sheet to the customer that covers research on metal belt operating conditions.

Intermittent Drive Unit for Demonstration

Please contact us, esptially if you have issues of precise transportation pitch and tracking.

Friday, February 12, 2016

Micro pattern sleeves

Recently, it is increasing for us to provide moulds for nanoinprint with micro patterned surface.

 Thickness of sleeve is around 0.05mm~0.3mm and materials are Nickel or SUS.

A process to make a master mould, sleeve is pressed fit onto an axis and polish as mirror surface.
 After the sleeve is polished, it is curved micro pattern on the surface.

Micro pattern belt (Seamless Pattern Mould)

However, this means needs high precision machine tools and takes much time.

Also, the master moulds have lifetime so it is necessary to have a few moulds for mass production.
We have invented a new solution to make copy mould which is totally same as its master with transfer the micro pattern twice.
It does not cost like making new moulds by curving.

Example of micro patterned thin metal sleeve

The picture is an example but we could have smaller pattern recently.
We coat
electroless nickel plating on nickel sleeve first and curve after press fit the sleeve onto an axis.
 The patterned sleeve is used with pressed fit onto an axis of mass production machine.
 To press fit, a specific skill is necessary so we usually manufacture the axis as well.
 We deal with sleeves and axes for trial or mass production.