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.
喜訊！熱烈祝賀我司再次獲得河北省中小企業(yè)認(rèn)定 2024-06-07
管材耐壓爆破試驗(yàn)機(jī)保養(yǎng) 2024-06-07
一、管材耐壓爆破試驗(yàn)機(jī)的維護(hù)事項(xiàng) 1、高壓泵內(nèi)加軟化水，并根據(jù)情況隨時(shí)檢查軟化水，當(dāng)靠前次使用時(shí)或長時(shí)間不用后，在使用時(shí)首先打開壓力泵工作幾分鐘，使管內(nèi)的空氣排光，然后按操作程序操作; 2、如果計(jì)算機(jī)的壓力、各支路試驗(yàn)壓力值顯示變化頻繁，可能有泄露，應(yīng)及時(shí)檢查相應(yīng)支路泄壓閥是否關(guān)嚴(yán)，或者檢查試樣裝夾是否安裝嚴(yán)密及各個(gè)高壓管連接狀況; 3、管材耐壓爆破試驗(yàn)機(jī)輸出的高壓軟管不可用來直接提起試樣，以免損壞; 4、恒溫水箱內(nèi)的加熱器應(yīng)該定期測(cè)量，并且每次使用前應(yīng)該檢查恒溫水箱內(nèi)的水位應(yīng)達(dá)到規(guī)定的要求; 5、管材耐壓爆破試驗(yàn)機(jī)做長時(shí)間靜液壓試驗(yàn)時(shí)，每天早晨上班、下班都要檢查整個(gè)系統(tǒng)工作是否正常，如：試驗(yàn)溫度、試驗(yàn)壓力(主路、支路)、試驗(yàn)時(shí)間、循環(huán)泵等運(yùn)行情況。 二、管材耐壓爆破試驗(yàn)機(jī)的保養(yǎng) 1. 管材耐壓爆破試驗(yàn)機(jī)各部分應(yīng)經(jīng)常擦拭干凈，對(duì)沒有噴漆的表面擦拭干凈后應(yīng)用棉紗沾少量的機(jī)油再擦一遍，以防止生銹，雨季期間更應(yīng)注意擦拭，不用時(shí)用防塵罩罩住以防塵土侵入。 2. 控制柜上所有活門不應(yīng)打開放置，以免塵土進(jìn)入內(nèi)部，影響測(cè)量機(jī)構(gòu)的靈敏性。 3. 頻繁使用本設(shè)備做耐壓試驗(yàn)時(shí)。應(yīng)當(dāng)經(jīng)常檢查高壓管、三通、銅管、蓄能器等部位緊固情況以免時(shí)間長漏水。 儀器操作人員應(yīng)認(rèn)真閱讀并了解管材耐壓爆破試驗(yàn)機(jī)的維護(hù)保養(yǎng)，養(yǎng)護(hù)好儀器，使儀器經(jīng)常保持整潔、零部件及附件完整、安全，確保儀器正常運(yùn)行。如果您在使用操作中有什么問題，可以通過撥打本公司的服務(wù)熱線，本公司技術(shù)人員會(huì)為您一一解答。
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