Search results

The properties of HYP are between traditional chemical pulp and mechanical pulp [1].
The main properties were: dryness 35.5%, brightness 78 %ISO, freeness 490ml.
Because temperature was one of the essential factors on softening lignin and removing of shives, outlet temperature could affect the removing rate of shives.
:Effect of the Mechanical Treatment with a High-shear Kneader on Physical Properties of Bleached Wheat Straw Pulp(China Pulp & Paper Industry, China, 2007)
Changes of Pulp Properties and Fiber Characteristics in P-RC APMP Pulping (Transactions of China Pulp and Paper, China 2004)

The use of pulsed current parameters has been found to improve the mechanical properties of the welds compared to those of continuous current welds of this alloy.
An Influence of process parameters and their influence on mechanical properties are explained in detail in light of microstructural details. 1.
Kumar and Sunderaraj [10] studied the optimization of pulsed TIG welding process parameters on mechanical properties of AA5456 aluminum alloy weldments.
These two factors are playing the role in bringing down the strength of HAZ.
Sundarajan, Optimization of Pulsed TIG Welding Process Parameters on Mechanical Properties of AA5456 Aluminium Alloy Weldments, Materials and Design 30 (2009) 1288-1297

The parameters tested by single-factor tests are: liquor, explosion pressure, heat preservation time, and the charge of sodium hydrate and sodium silicate.
If you take close look at paper and paper products, you notice that even simple papers and boards do not only consist solely of cellulose fibers，but also contain many additives that guarantee the particular use properties of the papers[1].
Treatment of raw material was carried out by steam explosion using single-factor tests.
Fig.3 shows that the explosion press affects macrostickies content.
The optimal press was the highest press, but at this press some boards produced internal bubbles, which negatively affected their mechanical properties.

Numerous studies have found that the BFRP armature has high corrosion and chemical resistance, high tensile strength and a number of properties that make it different from metal armature [2-4].
The physical and mechanical properties of the specified types of armature are given in Table 2.
Mechanical characteristics of armature for samples of beams.
The physical and mechanical properties of both types of reinforcement had a significant influence on the deflection of hybrid reinforced beams (BMB, BMBD).
Exploring the deterioration factors of RC bridge decks: a rough set approach.

It was observed that the HANWA mixtures had improved mechanical and durability properties, a fact that was attributed to IC.
The amount of cement and the water to cement ratio was decided to be similar to the standard practice of the local construction sector; thus the mechanical and durability properties were the factors under investigation.
On the contrary, the exposed IC mixtures exhibited improved behavior in terms of mechanical and durability properties.
Riad, “Effect of moisture and temperature on the mechanical properties of concrete,” Constr.
Jensen, “Mechanical properties of Concrete with SAP Part II: Modulus of Elasticity,” no.

To obtain the necessary structure and mechanical properties, heat treatment of the finished wire and its products is usually applying.
The structure and mechanical properties of the metal after heat treatment are affected not only by the initial metal structure, the reduction ratio at deformation, the temperature and the heat treatment time, but also the rate of temperature rise.
Statistical processing of the structure and mechanical properties study results shown the follows.
The quality study was carried out on the following indicators: mechanical properties (the value of the tensile strength, elongation, relative constriction, hardness), the structure of the metal, the depth of the decarburized layer.
The metal sending the heat treatment had unstable mechanical properties and a heterogeneous structure.

By engineering the organic chemistry of polymers, material properties can be expanded beyond limits, to include optical, electrical and mechanical properties and heat resistance.
Unique mechanical properties of polymers allow waveguide formation using unconventional techniques, such as molding, casting, stamping and embossing, which are low-cost and rapid.
By adding an aromatic ring to a polymer, properties of the polymer can be enhanced or improved, such as excellent thermal stability and other properties.
Although properties of polymers that were studied do not possess all required properties, trade-offs among these properties can provide tailor-made polymers for specific integrated-optical-device-applications or for device-performance optimization.
Summary Oftentimes, materials are limiting factors in the success of a component.

In this study, novel polycaprolactone/hydroxyapatite (PCL/HA) scaffolds were prepared to increase mechanical properties and degradation of PCL/HA ones for bone tissue engineering.
Mechanical property and porosity as well as degradability of the PCL/HA scaffolds were also investigated.
The choice of the scaffold materials is one of the major factors for successful tissue engineering approaches in bone repair and remedy [3].
However, bone tissue engineering applications of HA has been limited in terms of size availability and shape flexibility because of their intrinsically poor mechanical properties and brittleness [9].
The mechanical properties of the PCL and PCL-N scaffolds were measured using Minimat (Rheometric Scientic, Piscataway, NJ, USA).

Results of non-destructive tests performed on welded joints are presented in this paper (magnetic particle and ultrasonic inspection), as well as results of destructive tests of the base material and welded joints (testing of tensile properties, impact testing, metallographic analyses of the structure).
For the testing of mechanical properties in the longitudinal (marked as u in figure 4a) and transverse direction (marked as p in figure 4b) of the 40 mm thick metal sheet, circular cutting has been performed in order to obtain a sample with diameter of 380 mm from the internal wall (internal coating) of segment 4-1 of the upper ring of guide vane apparatus, as well as cutting of the 450 mm long sample from the welded joint of the 50 mm thick metal sheet (welded joint V50) for metallographic testing of base material and of the welded joint, or, more precisely, of the material from heat-affected zone and of weld metal from the flange of the upper ring of guide vane apparatus, taken from segment 3-4.
Results of tensile tests showed that tensile properties of base material meet the requirements of standards EN 10002-1 and GOST 14637 for steel St 3 [10], table 2.
Geometrical properties of cross-sections of welded joints of the upper ring of guide vane apparatus, according to project documentation, are presented in fig. 3.
[11] EN 10164, Steel products with improved deformation properties perpendicular to the surface of product - Technical delivery conditions, 2004

The impact of friction factor, thickness of the cold extrusion, semi-cone angle and other factors on cold extrusion was analyzed.
The traditional processing method of hollow piece is to remove of excess material by mechanical cutting to get a correct shape.
Cold extrusion forming process not only can improve productivity, but also improve the utilization of materials and mechanical properties of parts.
Fig.3 is a relationship diagram of the evaluation standards and various factors that affect forming.
a) Cold extrusion thickness b) The protruding die semi-cone angle c) Corner radius d) The friction factor Fig.3 Factors and indicators trends The Analysis of the Forming Velocity field in extrusion process.