TEST METHODS FOR POLYORGANOSILOXANE COMPOSITIONS USED AS PROTECTIVE COATINGS IN ELECTRONIC INSTRUMENTATION

2020 ◽  
Author(s):  
Ольга Владимировна Неёлова ◽  
Людмила Муратовна Кубалова ◽  
Анна Петровна Деревщикова
Keyword(s):  
Protective Coatings ◽  
Test Methods ◽  
Testing Methods ◽  
Organosilicon Polymer ◽  
Electronic Instrumentation

Представлен обзор по методам испытаний кремний органических полимерных композиций, применяемых в качестве защитных покрытий в современном электронном приборостроении. A review is given of testing methods for organosilicon polymer compositions used as protective coatings in modern electronic instrumentation.

Tentative Recommended Specifications for Asphalt-Type Protective Coatings For Underground Pipe Lines (Minimum Recommended Protection)—A Report of NACE Technical Unit Committee T-2H On Asphalt Type Pipe Coatings

CORROSION ◽  
1958 ◽  
Vol 14 (8) ◽  
pp. 37-38
Keyword(s):  
Protective Coatings ◽  
Physical Characteristics ◽  
Coating System ◽  
Testing Methods ◽  
Underground Pipe ◽  
Pipe Line ◽  
Pipe Lines

Abstract Recommended minimum characteristics of an asphalt wrapped underground pipe line coating system are given. Included are physical characteristics of primer, enamel and wrapping, testing methods for primer and enamel. 6.4.5

Research the Test Method of the Voltage Transformer Secondary Load in the Three-Phase Three-Wire Electric Energy Metering Device

2014 ◽  
Vol 687-691 ◽  
pp. 3110-3115
Author(s):  
Gu Li ◽  
Zi Ming Fu ◽  
Jie Feng Yan ◽  
Bing Wen Li ◽  
Zhi Rong Cen
Keyword(s):  
Power Supply System ◽  
Electric Energy ◽  
Test Methods ◽  
Test Method ◽  
Testing Methods ◽  
Voltage Transformer ◽  
Secondary Load ◽  
Three Phase ◽  
Energy Metering ◽  
Definition Of

This paper analyzes and studies the definition of the voltage transformer secondary load, examines the practical purposes of the measured values of the voltage transformer secondary load, and presents a variety of testing methods to analyze and compare the differences. This paper gives the test methods of the voltage transformer secondary load when the connection of the voltage transformer is the Y / Y in a three-phase three-wire power supply system, filling the blank of this type of test method in the industry. When other units within the industry carry out such work, the conclusions of this paper are available for reference, and the conclusions of this paper can be referred when drafting relevant regulations in the future.

On the Issue of Safe Use of Fiber Cement Materials in the Buildings and Structures

2021 ◽  
pp. 35-41
Author(s):  
N.I. Konstantinova ◽  
◽  
N.V. Smirnov ◽  
O.V. Krivoshapkina ◽  
O.I. Molchadskiy ◽  
...  
Keyword(s):  
Building Materials ◽  
Protective Coatings ◽  
Fire Hazard ◽  
Thermal Exposure ◽  
Test Methods ◽  
Test Method ◽  
Sand Mixture ◽  
Industrial Buildings ◽  
Experimental Complex ◽  
Combustible Materials

Fiber cement finishing materials are widely used in the construction of industrial buildings and structures due to the complex of valuable operational properties. In the Russian market there are fiber-cement panels with a variety of design solutions for their coloring and application of protective coatings. Fiber cement board is a strong and moisture-resistant composite material made from a cement-sand mixture, reinforcing cellulose fibers and special additives. Not being a non-combustible material, the fiber cement boards in accordance with the current mandatory requirements, as a decorative, finishing and facing material for walls and ceilings have restrictions on their use. Existing domestic requirements regarding the methodology for assessing the combustibility of fiber cement products largely narrow the field of using these materials. Therefore, it is advisable to develop the proposals for amending the test methods and the regulatory framework governing their fire-safe extended scope. In the course of this work execution, the main provisions of the regulatory and methodological framework that establish the requirements for the fire-safe use of fiber cement materials are analyzed. Experimental complex studies of fire hazard properties of various types of samples of the fiber cement finishing panels and slabs were carried out. It is established that fiber-cement materials belong to the class of the least fire-hazardous materials. Advisability is determined concerning the introduction to the national regulatory practice of GOST R «Building materials. Test method for fire hazard under thermal exposure with a single burner (SBI)». Classification parameters of the group of non-combustible materials NG2 were established to amend GOST R 57270—2016 (method 1). Classification parameters of the group of non-combustible materials NG2 for making changes in GOST R 57270—2016 (method 1) are established. Proposals were developed to expand the scope of application of the materials and products made of fiber cement as enclosing structures, partitions, and decorative finishes (cladding) in the buildings and structures.

Research of Spindle Runout Testing Methods

2011 ◽  
Vol 121-126 ◽  
pp. 1455-1459 ◽  
Author(s):  
Yi Gao ◽  
Guo Hua Cao ◽  
Hong Ji Xu ◽  
Zheng Lin Yu
Keyword(s):  
Measurement System ◽  
Test System ◽  
Test Methods ◽  
Displacement Sensor ◽  
Sensor Calibration ◽  
Laser Displacement Sensor ◽  
Testing Methods ◽  
Calibration Experiment ◽  
Calibration Device ◽  
Machine Spindle

The paper aims at the analysis of machine spindle runout characteristics and designs of a laser displacement sensor in non-contact spindle runout measurement system. To ensure accuracy, we designed the laser displacement sensor calibration device, and the test calibration experiment was carried out by using laser displacement sensor. Experimental results showed that the test methods met the accuracy requirements of test system.

Study on Testing Methods for Thermophysical Properties of Materials

2015 ◽  
Vol 1095 ◽  
pp. 471-475
Author(s):  
Zhe Hu ◽  
Jin Yong Jiang ◽  
Gui E Lu ◽  
Qiang Ge ◽  
Shao Guang Wang ◽  
...  
Keyword(s):  
Thermophysical Properties ◽  
Great Influence ◽  
Test Methods ◽  
Test Method ◽  
Testing Methods ◽  
Properties Of Materials

This paper introduced the relevant concepts of thermophyscal properties and some methods measuring the parameters of material about thermophyscal properties. Different test methods have their own features and advantages. It should be taken into account that the size and mass of material have great influence on the test method.

The Analysis on Materials Testing Network of Ecology Environment

2012 ◽  
Vol 427 ◽  
pp. 179-184
Author(s):  
Xin Chun Fang ◽  
Jian Zhong Sun ◽  
Rui Ping Kong ◽  
Lu Kui Shi
Keyword(s):  
Network Performance ◽  
Functional Materials ◽  
Test Methods ◽  
User Needs ◽  
Materials Testing ◽  
Network Technology ◽  
Test Results ◽  
Testing Methods ◽  
Network Testing ◽  
Balance Testing

As the network technology is widely used in the functional materials test of ecology environment, it becomes more and more important to balance testing network performance fast and accurately. However, there are so many network testing methods with a variety of user needs and different scopes. If we use these test methods indiscriminately, time and money is largely consumed, and the testing results often cannot meet user's requirements. Thus, while testing the network performance, in order to accelerate the speed of the material testing, and ensure the quality and the accuracy of test results, characteristics and user's requirements must be selected and improved.

Test Methods to Visualize the Break-Down Behaviour of Sliding Bearing Materials

2007 ◽  
Author(s):  
Florian Gruen ◽  
Istvan Godor ◽  
Wilfried Eichlseder ◽  
Walter Gaertner
Keyword(s):  
Time Resolution ◽  
Test Methods ◽  
Test Method ◽  
High Time Resolution ◽  
Trial And Error ◽  
Testing Methods ◽  
Material Optimization ◽  
Scale Size ◽  
Bearing Materials ◽  
Time Of Failure

In the context of this work, testing methods of model scale size have been developed, which are based on the ring-on-disc system. These methods enable the visualization of the events in the sliding materials during operation and subsequent breakdown with high time resolution. Therefore, it is possible to visualize and analyze the events taking place at the time of failure. The new test method was benchmarked using the materials AlSn20Cu, CuPb22Sn2 and SnSb7.5Cu3.5. The resulting data enabled the generation of models that characterize the events of the different tribo-materials. Therefore, the proposed method supports the trial-and-error approach of material optimization.

Methods of Material Testing in High-Pressure Hydrogen Environment and Evaluation of Hydrogen Compatibility of Metallic Materials: Current Status in Japan

2018 ◽  
Author(s):  
Hideo Kobayashi ◽  
Hiroshi Kobayashi ◽  
Takeru Sano ◽  
Takashi Maeda ◽  
Hiroaki Tamura ◽  
...  
Keyword(s):  
High Pressure ◽  
Material Testing ◽  
Test Methods ◽  
Current Status ◽  
Metallic Materials ◽  
Testing Methods ◽  
Hydrogen Environment ◽  
The Status ◽  
Compatibility Of Materials ◽  
Pressure Hydrogen

In Japan, with regards to the widespread commercialization of 70 MPa-class hydrogen refueling stations and fuel cell vehicles, two national projects have been promoted on both the infrastructure and the automobile sides. These projects have been promoted to establish the criteria for determining hydrogen compatibility of materials and to expand the usable materials for high-pressure hydrogen environment. For these projects, establishing test methods to evaluate the hydrogen compatibility of materials is one of the most important tasks. This paper describes the status of common standardization of testing methods. Two projects share a common database for the testing results, which is currently put to practical use.

scholarly journals Characterization of Material Stiffness on Injection Moulded Microspecimens Using Different Test Methods

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Dietmar Drummer ◽  
Andreas Seefried ◽  
Steve Meister
Keyword(s):  
Standardized Test ◽  
Standard Specimen ◽  
Test Methods ◽  
Bending Test ◽  
Material Behaviour ◽  
Testing Methods ◽  
Material Stiffness ◽  
Internal Properties ◽  
Induced Changes

Injection moulding of polymer microparts can result in modified material behaviour due to process-induced changes in the internal properties. Thus, a transfer of the mechanical material properties in microparts, determined and valid on standardized test specimens, is only partially possible and should be verified on microtest specimens. This paper investigates both tensile and bending test methods for a suitable characterization of material stiffness in polymer microparts. For this purpose a down-scaled standard specimen is used and tested with different testing methods. The investigations reveal that the different testing methods result in comparable mechanical values. The effects of process-induced modified mechanical behaviour are observable in the investigated testing methods. Consequently, a microbending test is potentially a suitable method for characterizing material stiffness using microspecimens.

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