Gasket development
technology
Pursuing excellent sealing performance
We provide gaskets that reliably seal combustion gas, cooling water, and oil according to customers needs.
Since our establishment, Nippon Gasket has consistently worked to improve sealing technology, and has received high praise from our customers.
In recent years, to respond to the switching of electrification, we've also begun developing gasket related motors.
Development technology of
Cylinder head gasket
TECHNOLOGY
CAE analysis technology used in head gasket design
Our CAE analysis is used to determine important specifications that affect seal performance and fatigue resistance.
Predicts engine behavior during actual machine evaluation by applying head bolt axial force, combustion pressure, temperature distribution etc.
We estimate the changes of bore surface pressure and tightening clearance.
Structurel
lineup
We have a variety of gasket specifications according to cylinder internal pressure and structure of engines.
Rubber coating technology
Feature
Critical engine parts that operate in harsh environments from -40°C to 900°C
Our cylinder head gaskets are the core of engine parts which can seal combustion gas, cooling water, and oil at the same time in the harsh environments from -40°C to 900°C.
The sealing performance can handle a wide range of temperatures, pressures, and molecular weights.
Application example
Gasket development technology is used in such cases
Rubber seal for
Ni batteries
Rubber gasket with high durability, heat-resistant EPDM and bonding agent even under strong alkali.
It has high reliability due to covalent bonding, and contributes to shortening the development period as an in-house composition rubber.
For fuel cell vehicle BPP
(bipolar plate)
Die slide type rubber molding technology for shortening molding time.
It is possible to increase material yield and shorten vulcanization time.
Separator seal for
fuel cell vehicles
Adopted CIPG screen coating + UV method.
It can be created in a short time.
Production time can be reduced to 1/10 or less compared to injection molding rubber.
Gaskets for low surface
pressure parts
of electric vehicles
This is low-cost adhesive gasket for low surface pressure areas using both a surface pressure seal and an adhesive seal.
In addition to reducing the number of bolts and bolt strength, cost reduction can be achieved by reusing punched-out scrap.
Development technology
of exhaust system gasket
TECHNOLOGY
About M-3
Highly heat-resistant stainless steel M-3 has superior heat resistance (thermal fatigue),
corrosion resistance, and high-temperature oxidation resistance compared to general SUS301H spring steel.
It is also characterized by its high cost performance,
using less nickel than the nickel alloy steel conventionally used as a high heat-resistant material.
Various coating technology
Molybdenum coat
Reduces frictional force and prevents abnormal noise caused by cold and heat
Boron nitride coat
Improves micro-sealing in high-temperature, prevents flange welding
Manufacturing process
PROCESS
Since pre-coating materials are mainly used,
a progressive process with high production efficiency is possible.
Awards
Received "Technical Development Award" from Toyota Motor Corporation
Awards
- ●Received "Technical Development Award" from Toyota Motor Corporation
- ●Received "Project Activity Award" from Daihatsu Motor Co., Ltd.
Paper making
technology
PULP MOLDING TECHNOLOGY
TECHNOLOGY
Nippon Gasket manufacture paper-made products by applying paper-making technology
according to application and purpose.
CONTACT
Please feel free to contact us for any inquiries regarding our products.
Contact us by email