Snap-off blades

The snap-off blades are available for various cutting applications.

INNOVACERA snap-off ceramic blades are an excellent choice for de-burring plastic, profile extrusion, laying flooring, trimming wallpaper, films, and so much more.

Do you want better cutting performance? Choosing INNOVACERA.

Rapid and accurate cutting.

Higher durability.

Fewer blade changes = cost efficiency and safety.

Longer service lifetime.

Better sharpness.

Various cutting applications.

INNOVACERA provides customized cutting solutions for your individual requirements.

PBN-PG Heater Performance and Applications

The PBN-PG ceramic heater combines three layers of ultra-high purity ceramics, PBN-PG-PBN to produce an advanced micro-ceramic heating element system. PBN as an insulating substrate and PG as the resistive element. Both our PBN heater (Pyrolytic Boron Nitride) and PG heater (Pyrolytic Graphite) are manufactured by high temperature CVD. These high performance elements exhibit outstanding thermal properties in a ceramic heater, including high thermal conductivity and anisotropy.

Mechanically durable and thermally shock resistant, PBN-PG heaters are unaffected by vibration under most conditions and can be tailored to thermal gradients for specific requirements. With an ultra-fast response and low thermal mass, PBN-PG heaters demonstrate a power output of 35 watts/cm 2 (225 watts/in 2) and higher.

PBN-PG Performance Advantages:

• Micro-ceramic heating element has an operating temperature of 1600°C.
• High mechanical durability and dimensional stability.
• Dimensionally compact. PBN layer provides electrical insulation.
• Thermal gradients can be tailored to meet specific requirements.
• Eliminate outgassing and contaminations.
• High thermal shock resistance.
• Chemically inert to almost all metals, liquids and gas.
• Large variety of PG heater and PGN heater shapes available.

Potential applications for PBN heaters include:

• MOCVD heater
• Metal heating
• Metal evaporation heat source
• Superconductor substrate heating
• Sample analysis heating
• Electron microscope sample heating
• Semiconductor substrate heating (MBE, CVD, sputtering coating)

INNOVACERA’s PBN material

PBN is with 99.99% purity and a grade of hexagonal boron nitride. It is produced by the chemical vapour deposition process to create its solid body and all the boron nitride crystals grow parallel to the surface on which the vapour is deposited. The CVD process gives this pyrolytic boron nitride an almost perfect layered structure, which leads to anisotropic thermal conductivity, making it an ideal material to make crucibles for crystal growing.

Main Features
1. The colour of PBN is between ivory and orange-brown, nontoxic, imporosity, easy processing.
2. The purity is up to 99.99%, surface densification, good gas barrier properties.
3. The strength increases as the temperature rises and peaked at 2200℃.
4. Acid, alkali, salt, and organic reagent resistance. Meanwhile, it does not react with the majority of molten-metal and semiconductor material.
5. Excellent thermal shock resistance, excellent thermal conductivity, low thermal expansion coefficient.
6. High resistance, high dielectric strength, low dielectric constant, low dissipation factor, excellent microwave and infrared ray ability
7. It’s with anisotropy in mechanics, heat, and electricity.

Properties

Property		Unit	Value
Lattice constant		μm	a: 2.504 x 10^-10   c: 6.692 x 10^-10
Density		g/cm3	2.10-2.15 (PBN Crucible); 2.15-2.19 (PBN Plates)
Micro hardness (Knoop)(ab side)		N/mm2	691.88
Resistivity		Ω*cm	3.11 x 10^11
Tensile strength		N/mm2	153.86
Bending strength	⊥C	N/mm2	243.63
	⊥C	N/mm2	197.76
Elastic modulus		N/mm2	235690
Thermal conductivity		W/m*k	“a” direction  “c” direction
	200℃	W/m*k	60           2.60
	900℃	W/m*k	43.7          2.8
Dielectric strength (at room temperature)		KV/mm	56

Main Applications
* Crystal growth (VGF, LEC Crucible)
* Molecular Beam Epitaxy (MBE) Crucible
* Polycrystalline Synthesis Boat
* OLED and MBE Effusion Cell
* MOCVD Heater
* PBN Infrared Window
* Traveling Wave Tube (TWT) (PBN Support Rod)
* High temperature, vacuum equipment insulator

Do you know the car oxygen sensor?

With the development of the automobile industry, especially the increase in the number of automobiles and the frequency of use, the pollution caused by automobile exhaust has attracted more and more attention. Traditional carburetor-type vehicles have not adapted to the new automobile exhaust emission requirements. In this case, electronically controlled fuel injection vehicles have become the mainstream of the development of the automotive industry. The electronically controlled fuel injection adopts a closed-loop control system, which can adjust the fuel injection volume in time according to the different working conditions and emission factors of the engine so that the air-fuel ratio can be maintained at 14.7:1, thereby obtaining ideal power and economy. The oxygen sensor is an important component of the automotive engine electronic control system (EMS)

The role of the oxygen sensor on the car is to measure the oxygen content in the exhaust after the engine burns, and convert the oxygen content into a voltage signal and transmit it to the EMS. Under closed-loop control conditions, the EMS adjusts the engine to make the air to fuel ratio at 14.7:1. Nearby, ensure that the three-way catalytic converter has the greatest conversion efficiency for the three pollutants of hydrocarbons (HC), carbon monoxide (C0), and nitrogen oxides (NOx) in the exhaust gas, which maximizes energy saving and emission reduction Effect.

What types of oxygen sensors are available on the market?

According to the working principle of the oxygen sensor sensitive element, it is mainly divided into: switch type oxygen sensor (concentration type), limiting current type oxygen sensor, and semiconductor resistance type oxygen sensor (TiO2 type oxygen sensor)

Type	Switch type oxygen sensor	Limit current type oxygen sensor	Semiconductor resistance type oxygen sensor
Principle	Determine the electric potential based on the difference in oxygen concentration	Determine the limiting current based on the diffusion of oxygen	Determine the resistance based on the chemical reaction of the semiconductor surface
output signal	voltage signal	current signal	Resistance signal
A/F control range	Narrow range, generally around 14.7	Wide range, generally between 10~23	/
Examples of market products	Bosch: LSH/LSF Denso: O2 oxygen sensor	Bosch: LSU (Five-line wide domain) Denso: A/F oxygen sensor	/

Related concepts and characteristic curves

Theoretical air-fuel ratio: A/F=14.7:1 (λ=1)

Rich mixture: When the actual air-fuel ratio is less than the theoretical air-fuel ratio, the mixture is called rich (λ<1).

Lean mixture: When the actual air-fuel ratio is greater than the theoretical air-fuel ratio, the mixture is called lean mixture (λ>1).

When the mixture becomes rich, that is, the concentration of oxygen in the exhaust decreases (λ<1), the output voltage signal of the oxygen sensor is close to 1V.

When the mixture becomes leaner, that is, the concentration of oxygen in the exhaust increases (λ>1), the output voltage signal of the oxygen sensor will be close to 0V.

Working principle

The crystal structure of ZrO2 material

In order to better meet the needs of market development, INNOVACER has now stably supplied the following planar oxygen sensor heating elements. It has a new design that promotes faster heating of the probe. Beginning the monitoring much faster than the thimble type.

1, Typical structure of switch type oxygen sensor sensitive element

Advantages and disadvantages

	A type (alumina type)	B Type (Zirconium Oxide Type)
Advantages	1) Good insulation 2) Fast heat conduction 3) Simple preparation process	1) The base material is the same, and the mechanical strength is higher. 2) The material is easy to prepare
Disadvantage	1) The product has a certain curve 2) *Need to solve the problem of co-firing of different materials	1) Poor insulation reliability 2) Heat conduction is slow 3) The preparation process of the insulating layer is complicated

* Is the core technology of our company.

2, Concentration Oxygen Sensor

(Schematic diagram of HF sensing element)

If you have any needs or problems with car oxygen sensors, please feel free to contact us and we will definitely give you the most professional assistance.

Hot Pressed Aluminum Nitride Ceramic Overview

Hot pressed aluminum nitride ceramic is used in applications requiring high electrical resistivity in addition to exceptional thermal conductivity. The applications for hot-pressed AlN typically involve rigorous or abrasive environments and high-temperature thermal cycling.

Below are the properties of the pressed aluminum nitride.

Property	Units	Value
Flexural Strength, MOR (20 °C)	MPa	300-460
Fracture Toughness	MPa m1/2	2.75-6.0
Thermal Conductivity (20 °C)	W/m K	80-100
Coefficient of Thermal Expansion	1 x 10-6/°C	3.3-5.5
Maximum Use Temperature	°C	800
Dielectric Strength (6.35mm)	ac-kV/mm	16.0-19.7
Dielectric Loss	1MHz, 25 °C	1 x 10-4 to 5 x 10-4
Volume Resistivity (25°C)	Ω-cm	1013 to 1014

The information provided on this chart is for general material property reference only.

Example Applications:

• Semiconductor heaters
• Ballistics armor

Should you have any inquiries, please feel free to contact us.

Ceramics For The Textile Machinery Industry

Innovacera manufactures ceramics for the textile machinery industry. The products are ceramic friction discs for texturing yarns, thread guides for fiber production, ceramic navels for Yarn spinning, and ceramic cutters for the textiles industry.

The advantages of using alumina ceramic is as below:

• Lowest possible yarn breakage rates
• Highest yarn cleanliness
• Low yarn tension
• Excellent package build
• High quality and cost effectiveness

It is new hard-wearing material with an excellent surface finish for higher yarn quality. The extreme hardness of ceramic also ensures superior process stability in spinning.

Properties of Ceramic Parts for Textile:

• Good wear and corrosion resistance
• 96% & 99.7% Al2O3 alumina ceramics
• Precision manufacturing
• Good surfaces finished for different applications

We have also developed a high-performance yttrium-reinforces zirconium oxide ceramic(TZP) for cutting yarns and textiles. It stands out from other materials with its extremely high cutting edge strength and excellent flexural strength and hardness. The use of Y-TZP cutters improves efficiency in cutting textile threads, which ultimately increases profitability.

Technical Advantages of Y-TZP Zirconium Oxide Cutters

• Faster cutting rates
• Consistently good cutting quality, e.g. improved strength of spliced connections
• No corrosion
• Smooth running
• Extended maintenance intervals
• Universal cleaning possibilities using acids, alkaline solutions and organic solvents.

If you have any inquiries, pls feel free to contact us.