Core Tip: For many years, lightweighting has been a key issue in the glass container industry. Many industry experts have published a large number of papers related to them from various angles. The discussion includes improvements in molding technology, advanced manufacturing techniques to improve process efficiency, and analytical techniques to improve bottle design quality. For many years, lightweighting has been a key issue in the glass container industry. Many industry experts have published a large number of papers related to them from various angles. The discussion includes improvements in molding technology, advanced manufacturing techniques to improve process efficiency, and analytical techniques to improve bottle design quality. This article is aimed at the often overlooked part, namely the wall thickness and distribution monitoring of the formed containers. It is also very important to ensure the success of the container's lightweighting. Although this process can sometimes be difficult, the benefits of weight loss to container manufacturers are real. Such as reducing the energy and raw materials consumed by each container, increasing production capacity and reducing cost transportation. All of this brings about an increase in total revenue. However, increasing revenue by reducing the weight of the container is not an easy task. Do not blindly reduce the weight of the container. The reason for the failure of many lightweight projects is that they are not prepared or inadequately prepared before they are put into production. To ensure the success of lightweight projects, it is important to follow the correct steps and methods, first and foremost, to conduct design analysis. The benefits of this are: 1) simulate the bottle and analyze the critical stress point 2) modify the shape of the bottle to minimize the stress caused by various loads such as internal pressure, vertical pressure and impact 3) set the vertical thickness distribution pattern of the glass bottle Determine critical measurement locations and set product rejection and control limits. 4) Repeat the experiment on new designs before manufacturing new molds and putting them into production. Second, make new molds or modify existing molds to fully implement new bottles. Designed in the production process, the mold can control the outer surface of the bottle and ensure the shape of the bottle is consistent. However, there is no way to control the inner surface of the bottle. In the past, wall thickness was not a concern when producing very heavy bottles. However, as the weight of the bottle decreases, optimizing the distribution of the glass material becomes critical. Therefore, it is important to monitor the material distribution of the glass container, set the ideal thickness reference line of the container, and control the thickness of the key points. 1. Third, the wall thickness of the container must be monitored during the production process. This is because the requirements for the production process are more demanding. It is necessary to ensure that the production is maintained within the set process control limits by measuring the wall thickness distribution information. 1. The bottom of the bottle - this area is critical to the pressure performance of the vessel. Since the internal pressure stress concentration in this region is easily damaged in the event of a collision, sufficient wall thickness must be maintained in this region. At this location, the glass material acts as a restraining strip to reduce the effectiveness of the expansion due to internal compressive stress. 2. Bottle standing wave zone - this area is very important from the perspective of bottle clamping and collision. This is most noticeable on bottles formed by blow molding because the standing wave is a significant feature and there is no way to avoid it. We hope that the glass in this area will be the thinnest but the thickness must meet a certain minimum requirement to maintain sufficient impact resistance. 3. Contact Points – These are also key areas that affect bottle clamping and impact performance. Unless there is sufficient wall thickness to withstand the impact load, the stress generated by the collision will damage the container. Thickness measurement and monitoring equipment To control the wall thickness distribution during production, the wall thickness must be measured. This time-consuming and laborious glass bottle sampling and wall thickness measurement was done manually before the development of the online wall thickness measurement system. This situation limits the development of lightweight. After the introduction of AGR's online wall thickness measurement system (OLT), it is possible to perform 100% online wall thickness measurement and active management of bottle wall thickness distribution. This will further reduce excess material while maintaining the design performance of the bottle to effectively reduce the weight of the bottle. AGR's measuring instrument AGR's OLT is an essential tool for implementing lightweight projects and daily wall thickness monitoring. The OLT is used to detect round containers, especially for standard bottles with straight walls and a small amount of decoration such as beer bottles, wine bottles, juice bottles. This technique is also suitable for blow molding bottles and other types of bottles. AGR's OLT and NROLT can be installed on various types of chain conveyor belts. Therefore, the installation location can be arbitrarily selected. The OLT and NROLT operate independently and do not depend on any other system. Compared to other wall thickness measurement systems, the OLT and NROLT are simple to set up to provide continuous and independent glass wall thickness monitoring. In addition to online detection, the system can also be used for offline screening. AGR's OLT and NROLT use capacitor technology is superior to other reflective or laser thickness measurement systems. It is not affected by sidewall contours and parallelism, glass color and transparency or other glass defects such as stone bubbles, so measurements are more accurate and repeatable. The OLT uses separate sensor strips, each of which covers a range of more than 1 cm and provides a 360-degree measurement of the sidewalls of the vials. NROLT's sensor strips are specially designed to measure the wall thickness of flat surfaces and corners of non-round bottles. Therefore, the OLT and NROLT have a larger measurement range, which ensures that containers with wall thickness problems are removed from the production line. The system can be set up to 4 sensor strips for thickness measurement of critical parts. The measurement of the OLT is stable and reliable, because it is a direct measurement, so there is no need to reprocess and compensate the measurement, so there is no false rejection. For round containers, the sensor strips can be completely adapted to areas that are difficult to measure such as sidewall contour changes, bottle shoulders, bottle heels and other curved surfaces. This technology guarantees thickness measurement accuracy at these critical locations. How much can the weight of the bottle be achieved? It depends on the design of the bottle, the control of the shape of the bottle and the ability to detect the thickness of the material in the critical part of the glass. 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