process development curing

The development of a dry curing process using physical treatments to promote the diffusion of the cure ingredients was studied. Vacuum pulsing with and without tumbling, continuous vacuum, and tumbling only treatments were compared with a conventional static dry cure control method on beef M. supraspinatus.Vacuum tumble …

During the curing process of composite, the heat generation and conduction is from a nonlinear heat source in resin curing reaction. ... Calculated development of degree of cure at the central point (0, 0, 0) compared with experimental result. Download : Download high-res image (217KB)

This curing process is performed with autoclaves at a temperature range of 325 0 F to 375 0 F and a pressure range of 80 to 170psi. The above-mentioned temperature and pressure-controlled environment change the chemistry of the hydration process of the concrete. The concrete produced by this method ought to have:

Curing is the process of maintaining the correct moisture content in concrete after placement, allowing proper hydration of the cement. This chemical …

3D structural electronics is a new paradigm in fabricating electronics with high design complexity. Basically, manufacturing of 3D structural electronics consists of several processes: structure building, wire creation, and pick-and-place of electrical components. In this work, a 3D structure was built in a commercial AM machine, and conductive wires …

During a curing process, strength degradation occurs due to residual stress, so it is recommended to cure for a long time, but a fast curing process has been required for high productivity. ... S. R. White and H. T. Hahn, Process modeling of composite materials: residual stress development during cure, part II. experimental validation, …

In the 150 °C curing process, the intermittent fluctuations were observed over a wider time range from the initial state, in (t_{{text{w}}} < 5607{text{ s}}), compared with the 100 °C curing ...

A process model has been developed which can be used to predict the residual stress history during the curing of composite laminates. This model includes the effects of chemical and thermal strains and assumes the material to exhibit linear, viscoelastic behavior. ... T2 - Residual Stress Development during Cure. Part I. Model Formulation. …

Sodium or potassium nitrate or nitrites are the cure agents used to process cured meats. Cure agents are responsible for the development of the characteristic stable red color in the meat. Nitrate is used as source of nitrite or a reservoir for nitrite. Nitrate has no direct effect on meat or poultry products.

01.24.2017. FTIR spectroscopy can be used to study the dynamics of an adhesive curing process, as shown by a study we conducted using automotive adhesives. Adhesive manufacturers need this information for development of new adhesives or changes in formulation. A small drop of a UV-cured acrylate adhesive (Dymax 6-621-GEL) was …

Despite being lost in time, the curing process is thought to be evolved from salt preservation methods as early as 3000 B.C. . Among the various additives used in meat curing, nitrite salt is very significant. ... The use of organic acid to cured meat enhances the color development process while inhibiting microbiological growth. Lactate ...

The orthogonal experimental method was applied to optimize three process parameters, including the heating rate, curing temperature, and holding time, for the high-pressure microwave curing of ...

The process of curing facilitates the cement hydration reaction that occurs between water and cement, resulting in the formation of calcium silicate hydrate (CSH) gel. ... strength of the hardened concrete is proportional to its internal temperature–time history during the early stages of development [1]. The detail of this process is ...

In a companion paper [1] a process model was developed for investigation of residual stress development during autoclave or hot press processing of thermosetting polymer matrix composites. Several material property characterization studies are re quired as input to this model. The present paper summarizes the results of the character ization …

Controlling the curing process is challenging due to the limited capabilities of conventional curing materials, which can only absorb and release water. Additionally, the uniform distribution of these materials within concrete makes it difficult to achieve modifications. ... The influence of initial water curing on the strength development of ...

The targeted compressive strength of the concrete at 28-day of curing was 20 N/mm2. Plain concrete cubes and beams were prepared with a mix ratio of 1:1.5:3 by weight and 0.6 water-cement ratio. A ...

Concrete. Conference Paper PDF Available. Investigating the effect of curing methods on the strength properties of concrete. August 2021. Conference: West Africa Built Environment Research...

Curing allows continuous hydration of. cement and consequently continuous gain in the strength, once curing stops strength gain of the concrete also stops. Proper moisture conditions are c ritical ...

The dominant curing process today for advanced polymer composites is still based on thermal curing using a range of thermal heating processes, in which the oven or autoclave is widely used. Because polymers and their composites have low thermal conductivity (epoxy resin thermal conductivity at 25 °C: 0.19 W/m K), conventional thermal curing ...

A comparison between cure profiles in points A and B, indicated in Fig. 1 (b) and (c), obtained using FDM and FEM proposed models, with data from Ref. [15] is shown in Fig. 2. Temperature peak, mean degree of cure in the exit section, and standard deviation of the degree of cure, in the same section, are compared in Table 4. As …

Curing plays an important role on strength development and durability of concrete. Curing takes place immediately after concrete placing and finishing, and involves maintenance of desired moisture and temperature conditions, both at depth and …

Curing is the process of maintaining satisfactory temperature and moisture conditions in concrete long enough for hydration to develop the desired …

It is well known that durability, interlaminar shear strength and modulus development in PMCs mainly rely on temperature history (affecting the cure reaction) and void percentage at the end of the curing process [3–5]. As a general rule, the higher is the curing temperature, the higher are the reaction rate and final DoC.

Curing plays a vital role in concrete strength development and durability. ... Curing is the process of controlling the rate and extent of moisture loss from concrete during cement hydration. Purpose of Curing of Concrete:-The reaction between cement and water is called hydration. It is an exothermic reaction (the reaction which releases heat).

The present review aims at advancement in the area of radiation curing technology. The study begins with an overview of radiation curing technology development, followed by the mechanism involved in curing. For a better understanding of the process, types of radiation curing methods are also explained. Moreover, the paper …

The curing process of cement-based materials involves the application of appropriate moisture content and temperature during the placement and subsequent time period to achieve the required ... introduced the concept of concrete maturity, which emphasized the significance of curing age and temperature to the development of …

Home. Ecological and Health Effects of Building Materials. Chapter. Design and Development of Improved Methods of Curing of Bricks During Manufacturing …

Sreekantamurthy et al. developed cure process models to model the laminate cure responses with reference to the physics of the curing process using the cure simulation ... D.G.: Development of an autoclave cure cycle with cooling and reheating steps for thick thermoset composite laminates. J. Compos. Mater. 31, …

Although the process of curing compounds' application (double or single layer) affects concrete strength development. Studies have shown that it is possible to achieve a compressive strength of 80–90% of water-cured specimens [32], [33] .

The development of a dry curing process using physical treatments to promote the diffusion of the cure ingredients was studied. Vacuum pulsing with and without tumbling, continuous vacuum, and ...

The conventional drying system designed in the 1960's is still being used in the processing of the peanuts today (Figure 1). The objectives of this paper is to design and develop a new peanut curing process for West Texas. KW - Curing process. KW - Peanut. KW - …

The procedure models refer to existing analytical and numerical calculation methods for the design of adhesive bonds, which, however, are aimed at determining the maximum achievable strength of the adhesive at the end of the curing process. The curing time and the curing process of the bonds are determined, if any, only in the late …

As the curing process advances with time and temperature, at a certain degree of cure, a giant macromolecule is formed which spans the material and the material gels. For typical epoxies, gelation occurs at a degree of cure of 0.5 to 0.6. ... rate or quality and directing you to the most appropriate development workflow to improve the process;

Request PDF | On Jan 1, 2023, David Lindeman and others published Residual stress development in curing processes: Material characterization and modeling | Find, read and cite all the research you ...

Present study reviews viability of producing low and high-strength self-curing concrete with meticulous use of various self-curing agents. The use of curing …

The curing agents have a significant impact in determining the rate of reaction, curing cycle, and final characteristics of the processed product [1,2,3].Curing agents are composed of compounds containing active hydrogen and its derivatives, ionic and cationic inhibitors, and reactive cross-agents that are typically of equal weight [4, …

Adhesive curing processes and material property evolution. The curing process in structural adhesives is commonly initiated by raising the temperature of the adhesive to a level that promotes the curing reaction. In some cases, however, the conversion process is initiated through exposure to ultraviolet (UV) light or water [3]. …