The document discusses wear resistance testing methods for thermoplastics. It describes a sand slurry test according to ISO 15527 where specimens are rotated in an abrasive slurry for 3 hours. Mass loss is then calculated and compared between materials. While PTFE has the lowest coefficient of friction, its wear resistance is poor due to weak molecular bonding. PE-UHMW has much better wear resistance than PTFE, despite a higher coefficient of friction, making it suitable for applications requiring both low friction and high wear resistance.
Treadwell is a leading FRP products manufacturer and supplier in Australasia. Their wide range of products includes FRP handrails, FRP grating, FRP ladders, access systems, instrumentation stands, support systems, rung covers, deck plating etc.
FRP for masonry, stone, flat/curved arch terracotta and cindercrete stabilization with a Class A Fire Rating for interior, exterior, and above or below grade (wet) applications.
Pultrusion 101 - General capabilities of Creative Pultrusions, Inc., a leader in the fiber reinforced polymer composites industry. We are best in class and offer in-house design, manufacture of profiles, fabrication and cnc machining and in-house testing.
Treadwell is a leading FRP products manufacturer and supplier in Australasia. Their wide range of products includes FRP handrails, FRP grating, FRP ladders, access systems, instrumentation stands, support systems, rung covers, deck plating etc.
FRP for masonry, stone, flat/curved arch terracotta and cindercrete stabilization with a Class A Fire Rating for interior, exterior, and above or below grade (wet) applications.
Pultrusion 101 - General capabilities of Creative Pultrusions, Inc., a leader in the fiber reinforced polymer composites industry. We are best in class and offer in-house design, manufacture of profiles, fabrication and cnc machining and in-house testing.
Medium & Light Duty Slurry Pump MM & ML
Pump type ML is the standard light duty slurry pump which designed for the continuous pumping of light abrasive, light density slurries with minimal maintenance requirements. The maintain high efficiencies over the wear life of its components and typical used in process plant transfers, wet waste processes recycling-washing plant, sad plant duties, heav minerals processing, mineral recovery and chemical process plant.
Presentation on Polymer Modified Steel Reinforced Concrete.
This presentation represent the changes in properties with and without polymer modifications.
Medium & Light Duty Slurry Pump MM & ML
Pump type ML is the standard light duty slurry pump which designed for the continuous pumping of light abrasive, light density slurries with minimal maintenance requirements. The maintain high efficiencies over the wear life of its components and typical used in process plant transfers, wet waste processes recycling-washing plant, sad plant duties, heav minerals processing, mineral recovery and chemical process plant.
Presentation on Polymer Modified Steel Reinforced Concrete.
This presentation represent the changes in properties with and without polymer modifications.
Presentation by Tom DeMint of Owens Corning at CAMX on October 15, 2014. As the wind power energy generation industry continues to develop, one of the main objectives of turbine rotor blade manufacturers is to reduce total energy production cost to align wind power with other energy sources. Energy produced by wind turbines is more widely available than ever before; nevertheless the industry is constantly looking for ways to further optimize the cost of energy (CoE) as one of its foremost goals. The turbine, together with its rotor blades, plays an essential role and is one of the major components of these machines in terms of cost. It generates the torque which drives the generator and is responsible for the range of conditions energy can be extracted from the available wind. Wind farms are now constructed and operate in challenging off-shore as well as on-shore locations with differing wind speed conditions. Glass fiber composite rotor blades have contributed greatly to the success of this sustainable energy source and have allowed the wind industry to make significant advances in recent times, especially in off-shore and in low-wind locations. One of the most important advances has been the progressive technology applied to the properties of glass fiber leading to the development of high modulus glass types for lighter composites offering greatly enhanced resistance to fatigue at an affordable cost. The technological advances in glass fiber properties has resulted in rotor blades of ever greater length - beyond 85m – dimensions deemed unreachable less than a decade ago. This presentationl highlights advances in the material properties of glass fiber to help designers and engineers conceive blades which are lighter yet with increased length, improved aerodynamic performance with resistance to higher, long-term fatigue loads which ultimately enables wind turbines to increase power yield and therefore reduce the cost of energy.
The World's only Double Contact Flipper Gasket for Sliding Sash Windows - Tec...Coastal Joinery Hardware
A white premium quality Tempo sliding sash double flipper seal with a closed cell micro foam for ensuring that no water absorption is possible, coupled with good aesthetics and no wavy effects post installation.
Feature a rigid back for easy installation and to prevent stretching.
The closed cell foam and hollow chamber gives a high tolerance and an acoustic value of 40dB.
Easy creation of gasket by means of notches with the SPVT tool.
Working temperature -40°C - +120°C.
Colour Stable, Ultra-Violet and Ozone resistant, and conform to the requirement set out for the fire resistant products pursuant to DIN 18095.
The high quality material is compatible with thinned acrylic paints and alkyd resin paints containing conventional solvents.*
*Paints and coatings of which the properties are unknown must be tested for compatibility in contact with the weatherseals.
Why (and How) You Should Implement Plastic BearingsDesign World
Learn about the characteristics of plastic plain bearings, the different polymer materials available, and the many benefits that these types of bearings boast in comparison to metal bearing alternatives. Discover the advantages and limitations of plastic versus bronze bushings and ball-bearing systems, alongside specific application examples. Join igus in finding out how to implement plastic bearings into rotating, oscillating, and linear applications, and learn about potential applications for plastic bearings.
Watch this webinar to learn:
-What plastic bearings are and how they work
-Advantages and limitations of plastic bearings versus various alternatives
-How to design plastic bearings into different applications
-Review applications in which plastic bearings have already been implemented
Preparation and Toughness Studies of Acetal (POM) & PTFE BlendIJMTST Journal
Plastic gears have positioned themselves as serious alternatives to traditional metal gears in a wide
variety of applications. Acetal (POM) is the most commonly used material for polymer gear manufacture.
Acetal is a thermoplastic used in precision parts requiring high stiffness, low friction and excellent
dimensional stability. Due to poor wear resistance it is limiting its application to motion transmission and low
power transmission hence to enhance wear resistance it is blended with poly tetra fluro ethylene (PTFE).
Mixture of PTFE to POM increase the wear properties of blend.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Elevating Tactical DDD Patterns Through Object Calisthenics
Pe uhmw compare to ptfe
1.
2. Wear Resistance
Engineers have many factors as consideration to choose material in mechanical
engineering design, one of the most important factor is wear resistance.
Wear resistance is the ability of a material to resist the gradual wearing away caused by
abrasion and friction with another material.
Many method used to measure material wear resistance, for thermoplastics wear resistance
use sand slurry test by ISO 15527 reference.
By sand slurry test method, specimens rotated at 200 – 2400 rpm for 3 hours inside test
cup that containing slurry abrasive material (silica sand or aluminum oxide). After testing,
the loss in mass of the test specimens calculated and compared to another material
specimens and specify percentage of mass loss.
3. FIG 1. Sand Slurry Test for PE‐UHMW by ISO 15527
Thickness, h : 6.35 mm
Width, b : 25.4 mm
Length, l : 76.2 mm
Specimen
Key:
1. Abrasion test cup ( diameter 120 mm,
rust‐proof steel, with cooling jacket)
2. Baffles
3. Drive Motor (1200 rpm)
4. Belt drive
5. Supporting structure
6. Slurry of abrasive in water (silica sand
or aluminium oxide)
7. Specimen
*Source: ISO 15527, “Plastic – Compression‐moulded sheets of polyethylene (PE‐UHMW, PE‐HD) – Requirement and
test method
4. PE‐UHMW Wear Resistance
PTFE that Indonesian engineers known as Teflon® Dupont, with its lowest coefficient of
friction (0.1) among the other thermoplastics have been applied for application that need
resistance to abrasion in many years. But the outcome of PTFE application is worse than
the expectation.
Need to remember, PTFE is soft thermoplastic
caused by bond between PTFE molecule chain
bond not strong enough, and cannot withstand
abrasive force (easy to wear).
In the other hand, material that close to PTFE in
concerning coefficient of friction is PE-UHMW
with coefficient of friction 0.25, but PE-UHMW
wear resistance is 8 times better than PTFE. And
that’s why PE-UHMW nick name is “the poor
man’s Teflon”.
So, PE-UHMW is the ultimate material for
application that need excellent sliding properties as
well as excellent wear resistance.
