Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. Proteins perform a vast array of functions within living organisms, including DNA replication, catalyzing metabolic reactions, responding to stimuli, and transporting molecules from one location to another.
We supply protein, which is generally consumed immediately before and after exercising, or in place of a meal. Some types of protein are to be taken directly before and after a workout, while others are to be taken before going to bed. The theory behind this supplementation is that bodybuilders, by virtue of their unique training methods and end-goals, require higher-than-average quantities of protein to support maximal muscle growth.
Vegetarian Protein Powder,Plant Protein Powder,Natural Protein,Natural Protein Powders Sinochem Jiangsu Co., Ltd. , http://www.sinochemnutrition.com
Troubleshooting of internal leakage in hydraulic system
Hydraulic oil leakage will cause the hydraulic pressure to decrease and the normal oil pressure cannot be established, resulting in the system not working properly. There are two types of leaks in the hydraulic system: leakage and internal leakage. Leakage is mainly caused by broken tubing, loose joints, tight fastening, etc.; internal leakage is mainly caused by leakage of oil pumps, cylinders, and distributors inside the hydraulic system. Endoleak faults are not easily detected and sometimes require instrument detection and adjustment before they can be eliminated. 1. The relevant parts of the gear oil pump are seriously worn or assembled. (1) The clearance between the pump gear and the pump housing exceeds the specified limit. The treatment method is: replace the pump casing or repair with the inserting method to ensure that the clearance between the gear pump top and the housing is within the specified range. (2) Excessive wear of the gear shaft sleeve and the gear end face causes the pre-compression amount of the pressure relief seal ring to lose its sealing effect, resulting in the collusion of the high-pressure oil chamber of the oil pump and the low-pressure oil cavity, resulting in serious internal leakage. The processing method is: add compensating gasket under the rear axle sleeve (the thickness of the compensating gasket should not exceed 2mm generally), and guarantee the compression amount of the sealing ring. (3) When disassembling the oil pump, install the guide wire in the wrong direction at the joint surface of the two sleeves (sleeve of spiral oil groove). The processing method is: to ensure that the guide wire can simultaneously deflect two bushings at an angle according to the direction of rotation of the driven gear, so that the two bushings are closely fitted. (4) When disassembling the oil pump, the pressure-isolating seal ring is aged and damaged, and the pressure relieving sheet sealing rubber ring is installed incorrectly. The treatment method is as follows: If the pressure-insulated sealing ring is aged, replace it with a new one: The pressure-relief-plate sealing apron should be installed on the suction chamber (mouth) side (low-pressure chamber), and ensure that there is a certain preload pressure. If installed on the pressure chamber side, the seal apron will be damaged quickly, causing the high-pressure chamber to communicate with the low-pressure chamber, making the pump inoperable. 2. Aging and damage of the cylinder seal ring Looseness of the piston rod lock nut (1) The seal ring on the piston of the cylinder, the seal ring of the piston rod and the piston joint, and the positioning valve seal ring are damaged. The treatment method is: replace the seal ring and seal ring. However, it should be noted that the surface of the selected seal ring should be smooth; no wrinkles, no cracks, no air holes, no scratches, etc. (2) The piston rod lock nut is loose. The treatment is: Tighten the piston rod lock nut. (3) If cylinder misalignment is serious, the hydraulic fluid in the upper and lower chambers of the cylinder may be connected. Treatment method: If the loss of circle is not serious, you can replace it by increasing the piston seal to restore its tightness; if the roundness, cylindricity error exceeds 0.05mm, the cylinder should be honed, replace the piston to increase , to restore normal fit clearance. 3. The safety valve and return valve on the distributor do not close tightly (1) The safety valve is worn or the hydraulic oil is dirty; the ball valve is rusted and the spring force is insufficient or broken; the hydraulic oil is out of specification; the hydraulic oil is too thin or the oil temperature is too high. High (the normal temperature of the hydraulic oil should be 30 °C ~ 60 °C) will make the safety valve close. The treatment method is: replace the clean hydraulic oil that meets the standard; replace the spring with the specified length and elasticity; replace the ball in the ball valve, insert it into the valve seat, knock it, make it fit with the valve seat, and perform grinding. (2) The return valve has worn out or the return valve is closed due to dirty hydraulic oil. The processing method is: grinding cone surface and mutual grinding valve seat. If the cylindrical surface is seriously worn, it can be repaired by chrome plating. If the small cylinder surface and the pipe are worn, the inner gap is too large. The copper sleeve can be inserted into the pipe and the clearance can be restored. Clean the cylinder and replace the clean hydraulic oil. The slide valve and the slide valve hole wear, so that the gap increases, the oil in the oil cylinder under the action of the piston leakage from the worn gap, flow back to the tank. The processing method is: After the chrome plating grinding repair, matching with the slide valve hole.