Press plate is a shaft of laminated press mold and is widely used in each product manufactures. There are various characteristics which is demanded to a create coating for purpose. ( Releasable, Durability and so on) About other based molds, we respond to complex and high accuracy requests like
Various materials are used. In our company, we sale materials the following just two types.
All of the above have high strength more than metal materials and it can use just as materials(1.improving releasable 2. It is expected laminated amount UP by thinned steel sheet) In addition, we devise our original processing methods according to user needs. As a result, we receive critical acclaim. The following is a comparison about each patterns and characteristics.
A characteristic comparison of press plate materials
|Material||hardness||Proof stress||thermal expansion coefficient||Peculiar electric resistance||Corrosion resistance|
Wafer ring is called “Dancing so frame”. Possible to support small lot. We receive orders of barcode marking for management.
- Electroless deposition
- More than HRC50
- Brine spray test (finish plating)
- Less than 3s
Please feel free to contact us about last coating etc of products. We receive other requests about special products. We have our achievement in a major semiconductor product maker. an example: Barcode for product management (laser marking)
It is used our cement plate as paper cutting plate. The material is used by special stainless steels and releasable is widely up in contrast with conventional SUS304
Until 0.5~3.0mm (It is different for cages depends on steel type, so please ask us about that)
|DP-2||Steel type is used as stainless plates is the most popular in SUS304, but hardness of DP-2 is more than twice. Of cause, the durability is more than twice as well. Unexpectedly the price is reasonable. We help the cost down.|
|1500SP||We tried to up the strength than 1500SP DP-2.|
|STH-HT||It has been hard by deep cool processing. The flatness is the best in hardness plates.|
Our plate’s feature
1．It is more than twice as hard as SUS304
- ①The durability is perfect. (see below)
- ②When you don’t use it, don’ worry about wrap even if store against the wall.
- ③It is excellent in a dent and usually it is going to be a dimpling half size of SUS304 or less than that one.
２．Especially a flatness of DP-2・NSSST is good, so it is possible to make a great shape of that.
|conventional steels||our steel|
|Chemical component||mass％||18Cr-8Ni||17Cr-7Ni-Al||16cr-2Ni||16Cr-4Ni-C･N||16Cr-6Ni+special elements|
|Tenure of life||304 standard||1||6||3||6||7|
You can get just as raw materials.
If you consider as parts, we process shapes with a burr treatment method and then, we will deliver them. If you don’t have a diagram date, we are going to visit to measure. We are entirely at your service.
You can order from one sheet.
After order, we will ship the following process.
razor clean cut or turret punching
circumference removing edge
In our company, we are engaged in selling stainless mirrors doing business with NIPPON STEEL Stainless Steel Corporation of development stainless. There are the following features as compared with SUS304 mirror.
There is just a little distortion even if it’s thin.
It is hard to be damaged to have a surface strength.
Stainless mirrors had been existed since a long time ago with a focus on 18-8line (SUS304). It was very expensively. A demand was limited because of some disadvantages like it is easy to be damaged. So, the productivity became bad. However, in about DP-2, ①it is not easy to be damage by a high strength ②products of a good flatness were developed even if it was thin, so infinite possibilities expanded and the price was almost as much as level of a glass mirror. In recent years, an excellent reflectivity was approved and the adoption are required optical elements were getting to increase.
example:Medical equipment, each inspection machines, measuring instruments, DVC, Rear-projector, Reflector・・・etc
As noted above, in the products we cannot. We respond various needs.
1.Rh plating → top coating
3.Aluminum → top coating
|DP-2 mirror texture||Rh/top coat||Aluminum evaporation||Aluminum/top|
|1.reflectance||about 65％||about 85％||about 93％||about 88％|
|2.Spectral characteristic||Strong red (darkly reflection)||Little strong red||Collar balance goodness||Collar balance goodness|
|3.Surface hardness||○ Hv380||about 85％||× Don’t touch by hands||△ Just wipe, it’s okay.|
・Ra＝arithmetic average roughness・Ry=maximum height・Rz＝10 point average roughness・tp＝hard growth rate・RMS＝square root average roughness
Comparison of SUS304 mirror is an object of NO.8 finished mirror which is used by building materials.
Please refer to the following each comparison of data. (DP-2 is an abbreviation for NSS431DP-2 of development steel types of NIPPON STEEL Stainless Steel Corporation)
comparison of glass mirror and DP-2
|standard||DP-2stainless mirror||glass mirror|
|1.a manufacturing process||DP-2 stainless is making up last 800 class by a whetstone and twice buff polishing||t deposits iron, aluminum and hydrargyrum and peel on that.
It is often coated with inhibitor.
|3.Weight||A weight saving is possible by thinning down the plate thickness||The plate thickness is 5.0mm (a full-length) is a standard One sheet is 12.5kg|
|4.thin||can provide until 0.4mm||1mm is limit|
|5.Reflection||Because of direct reflection, an image exactly is reflected.||Because of back side reflection, a visible image is reflected light.|
|6.reflection||about 65 %||about 95%|
|7.Environment||recycle is easy(100%) stainless single material||not possible recycle glass and metal mixture|
|8.life span||semi permanent||depends on places|
|9.processing||It is easy to process any forms||difficulty|
|10.Distortion||enough thickness is necessary for a big of era||Good (about compare with stainless)|
|11.Damage||bad (but maintenance is not problem)||Good|
|12.Brightness||It is unfit for making up for women because it is dark. But DP-2 has antiglare, it is going to be good in case of inside.||It is suitable for interior because it is bright|
If you try to do coating skill, we can resolve about the damage and the brightness.
Comparison between DP-2 mirror with 18-8 mirror
Comparison between mechanically with material
|Item||New material（DP-2）||Conventional material（SUS304）||Explanation|
|Strength（N/㎜²）||985||285||Strength is the force at the moment when compositional deformation starts when external force is applied. In other words, DP-2 will not deform unless it is applied three times as much as 304. DP-2 mirror is OK to a board thickness of 0.4 mm. Even with 304 you can make a 0.4 mm, but with a slight force it will immediately distort the image.|
|Pulling power（N/㎜²）||985||285||Strength is the force at the moment when compositional deformation starts when external force is applied. In other words, DP-2 will not deform unless it is applied three times as much as 304. DP-2 mirror is OK to a board thickness of 0.4 mm. Even with 304 you can make a 0.4 mm, but with a slight force it will immediately distort the image.|
|Pulling power（N/㎜²）||985||285||As it has a hardness of 2.5 times, it is hard to get scratched, and it does not get scratched if it is wiped with a cloth. 304 is difficult to maintain.|
|specific gravity||7.73||7.93||It is a little but light.|
|thermal expansion coefficient（×10-⁶）||10.3||17.3||Because thermal expansion is small, thermal image distortion is also good for comparison with 304.|
|Structure||Minute||Grit||DP-2 is finished by special heat treatment, which has a very fine structure.
Thanks to this organization, a beautiful mirror surface is obtained.
|Corrosion resistant||Good||Good||We did a salt spray test (5% NaCl, 35 ° C) for 2000 hours, but we were not inferior at all.|
|Wrap||Little||A lot||DP-2 has the feature of low elongation and good blade separation. As shown in the figure below, 304 causes the image to be distorted during cutting because the edges are stretched.|
|Ferromagnetic||Have||Not have||DP-2 is ferromagnetic. If the side to be attached is made of steel, just sandwich the magnet plate and it's OK. No adhesive is required.|
comparison with punching molding
our products example
Please free to contact us first about Special steels and Stainless steels.
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