Centrifugal casting or rotocasting is a casting technique that is typically used to cast thin-walled cylinders. It is chiefly used to manufacture rotationally symmetric stock materials in standard sizes for further machining, rather than shaped parts tailored to a particular end-use.
Technical Parameters
Product Name : Bimetallic Barrel
Material: JYN3 + JYK Series Alloy
Suitable Machine: Injection / Extrusion / Blowing ...
Available Size: Φ < 500mm, L < 8,000mm
Process Method: Centrifugal Casting
Surface Hardness: 52-62 HRC
Surface Roughness: < Ra 0.8
Screw Straightness: < 0.02mm/m
Advantages
By casting and sintering high quality alloy powder on barrel inside surface with thickness1.5-2.0mm, screws can get higher performance in both wearing & corrosion resistant performance.
Application
General plastics & engineering plastics with below 70% glass fibre filling.
JYK Series Alloy
At this stage, we have JYK-1, JYK-2 and JYK-3 alloy types and treatments for wear fighting
TYPE
COMPONENTS
HARDNESS
(HRC)
Abrasive
RESISTANCE
Corrosion
resistance
applications
JYK-1, C
Fe, Cr, Ni
56 – 60
x
x
Recycling & engineering plastics, reinforced additives less than 20%.
JYK-2, B
Ni, W, Cr
58 – 62
xx
xx
Moderate corrosive, reinforced additives less than 35%
JYK-3, D
Ni, W, Cr
60 – 64
xxx
xx
High abrasive and moderate corrosive plastics
Suitability: (x good) to (xxx excellent).
TYPE
INGREDIENTS (WEIGHT %)
Cr
C
Fe
B
Si
W *
Mn
Ni
Others
JYK-1, C
8
1.2
Bal
4.3
4
/
0.65
10.8
< 1.0
JYK-2, B
8
1.4
5
4
3.3
16.5
0.5
Bal
< 1.0
JYK-3, D
8
1.4
5
4
3.3
40
0.5
Bal
< 1.0
*Highest composition of tungsten carbide can go up to 45%, which enables the barrels have 5 times wear-resistance capability than normal bimetallic barrels and up to 60% glass fibre filling in general & engineering plastics materials.
Bimetallic Barrels,Bimetallic Barrel Casting line,Extruder Bimetallic Parallel Twin Screw Ningbo Jinyi Precision Machinery Co., Ltd. , https://www.jinyi-machinery.com
New Alcohol DUI Mouthpiece
Toyota has recently unveiled its latest innovation aimed at enhancing road safety: a hands-free breathalyzer designed to prevent intoxicated individuals from getting behind the wheel. Unlike traditional breathalyzers that require users to physically insert a mouthpiece, this device allows drivers to simply exhale into a handheld unit, eliminating any direct contact with the device.
To ensure accuracy and prevent tampering, the system includes a mounted digital camera that matches each breath sample with the corresponding driver. This means that even if someone attempts to use a less-alcoholic person’s breath to produce a favorable result, the technology will still identify the actual driver's condition.
If the detected alcohol level exceeds the set threshold (the specific limit hasn't been disclosed yet), the vehicle’s ignition will be automatically disabled. The car will remain non-operational until a subsequent test shows a safe alcohol level. This feature aims to significantly reduce accidents caused by drunk driving and promote safer roads for everyone.
While the concept sounds promising, there’s currently no timeline for when this technology might become available as part of Toyota's existing vehicle lineup or aftermarket parts. As someone who’s always interested in automotive safety innovations, I’m curious to see how this develops and whether other manufacturers follow suit.
In related news, Toyota has been making strides in safety technology. Just last month, they introduced a new recall process for certain models to address potential issues with floor mats. Additionally, they’ve been working on integrating advanced safety features like automatic emergency braking and pedestrian detection systems into their vehicles. It’s exciting to see how these advancements are shaping the future of automotive safety.
As a car enthusiast, I often find myself exploring resources like Toyota Owners Online to stay updated on the latest developments. It’s a great community for owners to share tips, reviews, and experiences. If you're a Toyota owner, it’s definitely worth checking out. And while we’re on the topic of vehicle upkeep, it’s also crucial to know when it’s time to replace your tires. Worn-out tires can compromise your vehicle's performance and safety, especially during adverse weather conditions.
Overall, Toyota's efforts to integrate cutting-edge safety technologies into their vehicles reflect their commitment to making driving safer for everyone. Whether it’s preventing drunk driving or improving overall vehicle reliability, these innovations are steps in the right direction. I’ll continue to follow these developments closely and hope to see similar progress across the industry soon.