High tech Enterprise Certificate 2024-07-02
Teach you how to draw/send pipes for inspection, identify product quality, and safeguard legal rights and interests 2024-07-04
Hello everyone, today we celebrate the annual 315 International Consumer Rights Protection Day. The focus of today's topic is undoubtedly a deep exploration and examination of product quality. With the accelerated development of urbanization, the application of plastic pipes in construction projects is becoming increasingly widespread. The quality of plastic pipes directly affects the peace and safety of public life, and the quality of pipeline pipes is related to public safety. Especially the gas pipeline explosion accident that occurred in Yanjiao Town, Hebei Province on March 13th this year has sounded an alarm for municipal pipelines. Therefore, ensuring the quality of pipe materials is crucial and urgent for safeguarding consumer rights and interests
Five national standards, including heat-resistant polyethylene (PE-RT) valves, were released on March 15th! 2024-07-04
Five national standards, including heat-resistant polyethylene (PE-RT) valves, were released on March 15th!
What is PVC low-pressure irrigation pipe? How low is the pressure? 2024-07-04
According to the national standard, the pressure of PVC irrigation pipes is divided into five types: 0.25MPa, 0.32MPa, 0.4MPa, 0.5MPa, and 0.63MPa. The pressure bearing capacity is relatively small, which is also the main difference between PVC irrigation pipes and PVC water supply and drainage pipes. PVC irrigation pipe, also known as PVC irrigation pipe, full name of low pressure irrigation rigid polyvinyl chloride (PVC-U) pipe, is made of PVC resin powder as the main raw material, with appropriate additives added, processed and formed through mixing, extrusion, sizing, cutting and expanding processes. PVC irrigation pipes are mainly used to transport water from water sources to fields. Due to the relatively low irrigation pressure (0.25-0.63MPa), they are called low-pressure irrigation pipes.
What do the different colored PE pipe identification lines represent? 2024-07-04
What do the different colored PE pipe identification lines represent?
Xinjiang customer factory 2024-07-04
What are the effects of carbon black on the performance of PE pipes? 2024-07-02
Performance, Types, and Antibacterial Effect Evaluation of Plastic Antibacterial Agents 2024-06-07
The properties that antibacterial agents should possess (1) It has efficient and broad-spectrum antibacterial properties, good antibacterial persistence, and can maintain long-term antibacterial properties of antibacterial plastics; (2) Non toxic and odorless, no pollution to products and the environment; (3) Good compatibility with plastics and no adverse effects on the performance of plastic products; (4) Good color stability, does not change color during storage and use; (5) Has good chemical stability, resistant to acid, alkali, and chemical drugs; (6) Low price, without significantly increasing the cost of materials after use; (7) Has high thermal stability, does not decompose or deteriorate during plastic extrusion and processing.
Preparation stage for testing and precautions during the testing process 2024-06-07
Preparation stage for testing and precautions during the testing process What are the examination methods, assessment applications, and assessment evaluations for on-site experiments in the new version of the "Qualification Accreditation Review Criteria"? CMA on-site test assessment method On site testing and assessment of inspection and testing institutions can be carried out through witness testing, blind sample assessment, and operational demonstrations; Personnel comparison, instrument comparison, and sample retesting can also be adopted. The sample sources include those provided by the review team and those provided by the inspection and testing agency. Application of CMA on-site test assessment results In principle, all original records and necessary inspection and testing reports must be provided for on-site testing, except for operation demonstrations; When using electronic records, attention should be paid to the accuracy, completeness, and security of electronic data. In on-site assessment, if the result data is unsatisfactory, the inspection and testing agency should be requested to analyze the reasons; If it is due to accidental reasons, inspection and testing institutions can be arranged to retest; If it belongs to system deviation, it should be considered that the inspection and testing institution does not have the ability to conduct the inspection and testing. Evaluation of CMA on-site testing After the on-site test is completed, the review team should evaluate the results of the test, including whether the inspection and testing methods used are correct; Check whether the expression of test data and results is standardized and clear; Whether the inspection and testing personnel have the corresponding inspection and testing capabilities; The suitability of environmental facilities; Whether the collection, identification, distribution, circulation, preparation, preservation, and disposal of samples are standardized; Check whether the debugging and use of testing equipment and testing systems are correct; Check whether the inspection and testing records are standardized, etc; The review team provides an overall evaluation conclusion in the on-site assessment project table.
Nylon family in engineering plastics 2024-06-07
Polyamide, commonly known as Nylon or PA in English, has a density of 1.14g/cm3. It is a general term for thermoplastic resins containing repeated amide groups - [NHCO] - on the molecular main chain, including aliphatic nylon and aromatic nylon (aromatic nylon also includes semi aromatic nylon and fully aromatic nylon). Among them, there are many varieties of aliphatic nylon, with large production and wide applications. Their names are determined by the specific number of carbon atoms in the synthesized monomers, such as PA66, PA12, etc; Most aromatic nylon is high-temperature nylon, and its usage is not as large as aliphatic nylon. However, due to its excellent properties, there are increasingly more valuable applications for development, such as PA9T, PA6T, etc. Today, Xiaowei will discuss the nylon family in engineering plastics based on two parts: aliphatic nylon and aromatic nylon.
喜讯!热烈祝贺我司再次获得河北省中小企业认定 2024-06-07
管材耐压爆破试验机保养 2024-06-07
一、管材耐压爆破试验机的维护事项 1、高压泵内加软化水,并根据情况随时检查软化水,当靠前次使用时或长时间不用后,在使用时首先打开压力泵工作几分钟,使管内的空气排光,然后按操作程序操作; 2、如果计算机的压力、各支路试验压力值显示变化频繁,可能有泄露,应及时检查相应支路泄压阀是否关严,或者检查试样装夹是否安装严密及各个高压管连接状况; 3、管材耐压爆破试验机输出的高压软管不可用来直接提起试样,以免损坏; 4、恒温水箱内的加热器应该定期测量,并且每次使用前应该检查恒温水箱内的水位应达到规定的要求; 5、管材耐压爆破试验机做长时间静液压试验时,每天早晨上班、下班都要检查整个系统工作是否正常,如:试验温度、试验压力(主路、支路)、试验时间、循环泵等运行情况。 二、管材耐压爆破试验机的保养 1. 管材耐压爆破试验机各部分应经常擦拭干净,对没有喷漆的表面擦拭干净后应用棉纱沾少量的机油再擦一遍,以防止生锈,雨季期间更应注意擦拭,不用时用防尘罩罩住以防尘土侵入。 2. 控制柜上所有活门不应打开放置,以免尘土进入内部,影响测量机构的灵敏性。 3. 频繁使用本设备做耐压试验时。应当经常检查高压管、三通、铜管、蓄能器等部位紧固情况以免时间长漏水。 仪器操作人员应认真阅读并了解管材耐压爆破试验机的维护保养,养护好仪器,使仪器经常保持整洁、零部件及附件完整、安全,确保仪器正常运行。如果您在使用操作中有什么问题,可以通过拨打本公司的服务热线,本公司技术人员会为您一一解答。