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Low profile tire curing essential aviation tire air line water


Degrees and even up to the circumference of tire toe 1t3-1 / 2, essentially beyond repair. In addition to lack of tire rubber toe, and some tire tires also appear in large cone seal eyes, cracks problem. These problems seriously affect the quality of the product's normal production. For lack of tire rubber toe problem, after inspection, tire and tire mold dimensions of water are in line with the design requirements. It was assumed that there is no problem since the die size, resulting in lack of tire rubber toe may be due to lack of fetal material map location, then take the following measures: 1. Increase in seal width; 2. Improve ply turn-up height; 3. Increase the fill strip size. Measures taken no more than three cases the effect, but also good in the molding area covered by a layer of semi-finished lap 2-2.5mm thick film for the child in the eye cone seal, cracks problem. Then take the first sealing layer that is not strong, local stretching too much and not caused by fetal germ garish. So take the following measures: 1. Brush the first layer film sealing oil and gas, and then fit with the cord, and cord 26 film bubble may not have asked; take the first cut at the slopes at the 45 lap tolerances require cement, compaction; forming a good tire embryo , take first place in the carefully checked and found torn off and tilt. Must be promptly repaired. 2. Gap in the seal along the circumferential direction at a thickness of 1.5mm by attaching the reinforcement film. 3. Tire embryo strengthen garish,[link widoczny dla zalogowanych], while the corresponding mode in the tire air at the nest to open two run the wind line. The above measures, the results have little effect, indicating that the real cause of quality problems arising not found. After many rounds of careful exploration,[link widoczny dla zalogowanych], identification of the problem lies in the water on the tire. 3 Analysis of the normal design of water birth, child tooth from crown to the wall thickness is gradually increased, the tooth thickness of sub-parts of 2-2.5 times the thickness of the crown. When the water in the curing process of tire pressure charge and others, the crown side before compression and expansion of bead parts. Tire pressure of water done,[link widoczny dla zalogowanych], so that fetal embryo and fetus of water left between the air and a small amount of water by the crown, side by teeth child from the upper and lower steel ring mold parting gap export, although this process is very short, but on the whole curing process is important and must meet certain design and process principles. Find tire rubber in the toe of the reasons for lack of process, eventually found and put on teeth when the child is close to the water tire tire mold (see Figure 1). It is this situation in which the curing process under internal pressure, parity between the embryo and fetus air or water, a small amount of water on the difficult child from the teeth of the wind a few limited parting line gap along the entire export. This part of the residual gas to occupy a certain volume, under pressure has a certain pressure, the curing process, with the increase of internal pressure, water pressure sidewall gradually expanded, making the residual gas was eventually squeezed to the child toe , thus impeding the normal flow of rubber parts, resulting in lack of tire rubber toe. 2 2002 1 a model; 2 a tire; BU _ water births; 4, a mold parting surface between the air; 5 cavity part of a child missing toes; 6, a sealing layer cone eyes, cleft site. Figure 2 The cone for the child in the eyes of sealing layer, cracks problem, after identification. Water main is also associated with tire and tire configuration status. Air tires low profile tires tire configuration pictured above water l. Because these high-aspect ratio tires and the outside section is generally small in diameter, section width of the larger, some of the tire crown also was anti-arc, making the tire was a typical \tilt. The water birth due to process constraints, only the conventional design, the crown was flat shape. Tires and tire so the water allocation, the crown and the side of the gap is smaller than the shoulder a larger gap. When the water when the tire inflation pressure, tire crown paste first, followed by side, shoulder the slowest,[link widoczny dla zalogowanych], so easy to form a shoulder bag area. As these gas barrier, rubber tire wall along the water flow can not lead to tire in the sealing layer + generated cone eyes, cleft problems, serious or even exposed lines. 1 - model; 2 of a tire; 3 a bearing child; 4 - mold parting gap; 5 one-child dental child at the radial wind abalone; 6 one-child dental sub-office weeks to wind wool; 7 - Water tires tire shoulder at the Board to the wind abalone . Not do enough for the whole years before the model Que a. Front b. Expand the water side of Figure 3,[link widoczny dla zalogowanych], water, tire air line diagram of Pu Yi;} Preserved radial velocity of a Down; Bu butterfly's four weeks to the wind line. Plastic � solution. . .... Through the teeth tire tire tire mold at the surge of sub-lines and check to take such respect: .... Water on the tire shoulder of tire mold surge line, strengthen the two outer mold residue l �� fetal loss on the week crystal clear air, solved the problem of litter gas, so that curing of the tire cord tire radial wind lines t8 article. Radial and circumferential air line connected to each other lack of rubber, tire seal cone in the eye, cracks and other quality issues have been 2 in the water on both sides of the tire mold to increase fetal shoulder at four weeks of the class defects, the passing rate increased substantially. Wind lines, with the original 12 radial velocity lines connected to each other, see the article by Sheng Baoxin thank chief engineer of the guidance. Mode when a mattress
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