Technical Library: ultrasonic and coating (Page 1 of 3)

SMT, DIP, PCBA conformal coating equipment and turnkey solution

Technical Library | 2023-07-21 07:49:08.0

I.C.T is a manufacturer from China that offers SMT, DIP, PCBA conformal coating equipment and turnkey solution.

I.C.T ( Dongguan Intercontinental Technology Co., Ltd. )

Online PCBA Cleaning Machine: Efficient and Effective Cleaning for Your PCBs

Technical Library | 2023-09-13 12:46:41.0

Online PCBA cleaning machines are a great way to improve the quality and reliability of your printed circuit boards (PCBs). These machines use a variety of methods to remove contaminants and debris from PCBs, including water, solvents, and ultrasonic waves.

I.C.T ( Dongguan Intercontinental Technology Co., Ltd. )

Coating Drug-eluting Arterial Stents Using Ultrasonic Spray Nozzles

Technical Library | 2009-02-04 21:49:02.0

One proven method used to treat clogged arteries employs tubular, mesh-like metal structures, known as stents, inserted into an affected artery to relieve the blockage. Bare metal stents often cause a condition called restinosis, the buildup of scar tissue around the stent, causing re-blockage. To counter this, polymer coatings containing drugs that are released over time are used to inhibit restinosis. Applying coatings to stents, which have intricate geometries, is challenging. Using ultrasonic atomizing spray nozzles has proven effective in achieving continuous and uniform coatings. This paper describes the unique nozzle designs employed, the methodology used, and the results obtained.

SONO-TEK CORPORATION

The Characterization and Comparison of Spray Fluxers

Technical Library | 1999-04-26 11:52:34.0

An evaluation of two fluxers, one with a reciprocating ultrasonic head and the other with microjets, was performed using nine independent criteria. The paper describes the methods of testing and the results.

Siemens Process Industries and Drives

New Precision Coating Deposition Method for Photovoltaic Manufacturing

Technical Library | 2009-05-28 18:15:46.0

Considerable effort is ongoing to improve the efficiency and to move towards high-volume manufacturing of photovoltaic cells. Much attention has been focused on developing in-line processes to replace the current batch processes. A critical process to improve the performance of solar wafers is the application of Dopants. The basic requirement for this process is an automated method for applying a very thin, uniform film of Dopant to the silicon wafer as part of an in-line manufacturing process.

Ultrasonic Systems, Inc.

Conformal Coating Why, What, When, and How

Technical Library | 2012-01-05 18:40:07.0

Conformal coating is applied to circuit cards to provide a dielectric layer on an electronic board. This layer functions as a membrane between the board and the environment. With this coating in place, the circuit card can withstand more moisture by incre

DfR Solutions

Adhesion and Puncture Strength of Polyurethane Coating Used to Mitigate Tin Whisker Growth

Technical Library | 2022-01-26 15:22:33.0

Reliability of conformal coatings used to mitigate tin whisker growth depends on their ability to contain tin whiskers. Two key material properties required to assess the reliability of a polyurethane coating are documented experimentally: adhesion strength and puncture strength. A modified blister test using a predefined blister area is employed to assess the adhesion strength and a puncture test is employed to evaluate the puncture strength of the coating. After measuring the properties at time zero, the coatings are subjected to accelerated testing conditions (high temperature/humidity storage and temperature cycling) and the degradations of the coating properties are documented.

CALCE Center for Advanced Life Cycle Engineering

An Experimental Investigation of Fracture Toughness and Volume Resistivity of Symmetric Laminated Epoxy/ Glass Fiber/CNT multiscale composites

Technical Library | 2022-01-26 15:26:56.0

In this work an attempt is made to improve the fracture toughness and electrical conductivity of epoxy/glass fiber based laminates by the inclusion of carbon nanotube (CNT) fillers. The fiber orientation of the epoxy/ glass fiber (GF) fabric laminates was optimized based on estimation of mechanical properties. The carboxylic acid functionalized CNTs were incorporated into epoxy matrix by ultra-sonication method. The nano filled epoxy resin was used to prepare laminates with 30/45 GF fabric orientation. The CNT content was varied and its effect on the tensile properties was determined. The fracture toughness of multiphase composites was estimated using single edge notch bend (SENB) test. The presence of CNTs improved the fracture toughness by a crack bridging mechanism. The volume resistivity of multiphase composites was found to be superior to the conventional epoxy/CNT composite. The presence of glass fabric reduces the number of inter-tube contacts contributing to the reduction in volume resistivity.

Amrita University

1Click SMT Made Successful Installation and Training For Thai Customer!

Technical Library | 2020-04-01 05:52:59.0

Recently, our engineer Peter went to Thailand to provide after-sales support for our customer. In these days, we had installed a SC-900 selective coating line . Moreover, Peter gave patience and meticulous training to their staff, make sure they master the machine usage .Customer and agent are satisfied with our support and give their affirmation to us. SC-900 is a high Performance 4 axis Selective Coating Machine ,which is equipped with high precision servo control system , various valves , CCD system ,material tank weight detecting system etc, which can provide a high efficiency conformal coating process .The maximum coating size can reach 400mm*450mm with SC-900. So far, we've installed several dozen conformal coating line all over the world. It have excellent stability and performance. Check below link to get more info!

1 CLICK SMT TECHNOLOGY CO., Limited

Coatings and Pottings: A Critical Update

Technical Library | 2021-08-11 01:00:37.0

Conformal coatings and potting materials continue to create issues for the electronics industry. This webinar will dig deeper into the failure modes of these materials, specifically issues with Coefficient of Thermal Expansion (CTE), delamination, cracking, de-wetting, pinholes/bubbles and orange peel issues with conformal coatings and what mitigation techniques are available. Similarly, this webinar will look at the failure modes of potting materials, (e.g Glass Transition Temperature (Tg), PCB warpage, the effects of improper curing and potential methods for correcting these situations.

DfR Solutions

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