The impact puncture performance of the helmet is an essential safety helmet test item for hard hat manufacturers and major quality inspection agencies. It is particularly important to purchase a qualified high-quality helmet impact tester. Qingdao Zhongbang Instrument Co., Ltd., as a professional manufacturer of helmet impact testing machine, provides you with a detailed purchase process:
First, find a helmet impact testing machine manufacturer of professional <br> <br> search through the major search sites will be a lot helmet impact testing machine manufacturers, can be said to be everywhere, but it is less true professional In few cases, only a truly professional manufacturer who understands standard research standards can produce qualified and high-quality products.
How to judge whether the manufacturer is professional? First, look at the company website. You can see whether the helmet detection equipment is listed separately in the product list and whether it can test all the testing performance of the helmet. According to the new national standard GB/T2812-2006 "Hard Hat Test Method" and GB/T2811-2007 "Hardware", it can be learned that there is a helmet impact absorption performance, helmet puncture performance, and lateral rigidity of the helmet. , safety helmet chin straps, helmet vertical spacing, hard hat wearing height, helmet anti-static performance, helmet insulation performance, safety helmet flame retardant, hard hat pretreatment, helmet pretreatment, helmet immersion test , Hard hat ultraviolet radiation pretreatment thirteen tests, if the manufacturer is professional enough, the thirteen tests will have the appropriate testing equipment testing. Only manufacturers who specialize in producing helmet testing equipment can truly understand the relevant standards, and then truly research the helmet crash test machine that strictly meets the standards, and pay attention to the qualification of this series of products. Second, business professionals must understand the product specialty. The business staff will be the compass of the procurement staff. Only when the navigation is correct, the user can buy the products that are suitable for themselves to meet their real needs. Only in this way will the users not spend money to buy something that is not suitable for their own needs, does not meet the testing standards, unqualified product.
Second, determine whether the helmet impact test machine meets the national standard
GB/T 2812-2006 “Hard Hat Test Method†standard focuses on the requirements of the helmet impact test machine as follows:
1. Impact puncture height: 1000mm ± 5mm (the height of the corresponding drop hammer puncture hammer from the top of the test helmet).
2, drop hammer: quality 5-5.01kg, hammer head is hemispherical, radius is 48mm, material is 45# steel, symmetrical appearance.
3, puncture hammer: mass of 3 - 3.05kg, puncture part of the cone angle of 60 °, cone tip diameter 1mm, length 40mm, maximum diameter 28mm, hardness HRC45 (standards require puncture hammer to be in the center of the cap diameter within 100mm At the weakest point of the structure, the user also needs to pay attention when purchasing the product. Some problems due to the structure of the puncture hammer are not at the center.
4, 1 #, 2 # head model: to comply with the provisions of GB/T2812-2006 Appendix A. The mass is 5.0kg ± 0.1kg, which consists of the main body of aluminum or magnesium alloy plus weight. The top surface of the headform is made of metal and should be repaired after impact.
5, force sensor: Measuring range 0-20000N, frequency corresponding to the minimum 5kHz, dynamic force sensor.
6, data processing devices: data processing devices and measuring sensors supporting the final record and display the impact of the value of the device. The impact force acquisition limit is 500N, the continuous sampling time is not less than 40ms, the sampling frequency is not less than 20KH, and the maximum value within the sampling interval is automatically acquired and displayed.
7. Measurement Accuracy: ±2.5% of full scale range.
8. Power-on display device: If there is a circuit closed circuit device, it can signal that the puncture hammer has contacted the head mold.
The above requirements are the basic standard requirements for the helmet impact tester. These can be compared with the technical indicators provided by the manufacturer's product technical data, and then the non-professional manufacturer that does not meet the standard can be eliminated accordingly.
Technical information Three, buy a helmet impact testing machine Note <br> <br> some manufacturers helmet impact test machine is based on the standard list out directly from interception or other professional manufacturer in the information over, but it Whether its own product meets the standards still needs further verification. These also require the user to pay attention when purchasing.
Some technical indicators can be directly verified, but some, for example, whether the helmet impact tester sensor uses a 5000HZ dynamic sensor and whether the data processing device continuously samples, these can only be verified by a third-party testing agency. The third-party testing agency of the 5000HZ dynamic sensor of the helmet impact tester only has the qualification of the China Institute of Metrology, and any other third-party testing agency does not have the measurement qualification of the 5000hz dynamic force sensor. If the measurement report used by the manufacturer is not China Measurement Scientific Research Institute, then we can determine that this equipment department meets the requirements of the new standard, can not be identified by the relevant state departments, users can allow manufacturers to provide the helmet when the impact test machine calibration certificate, the authenticity of the certificate can be The China Academy of Metrology Sciences is verified by the certificate number on the certificate.
Other equipments for the helmet impact tester include: ZM-812 helmet lateral rigidity tester, ZM-813 helmet chin strap strength tester, ZM-815 helmet chin strap strength lateral stiffness tester, ZM- 816 helmet vertical spacing wear height measuring instrument, ZM-817 helmet fire resistance tester, ZM-818 helmet anti-static performance tester, ZM-819 hard hat electrical insulation tester, ZM-820 helmet UV pre-test Treatment box, ZM-821 hard hat high temperature pretreatment box, ZM-822 hard hat low temperature water immersion pretreatment box This article for Qingdao Zhong Bang Instrument Co., Ltd. original article, if you need to reprint, please add the source of the instructions, without permission, unauthorized use, Responsibility!
First, find a helmet impact testing machine manufacturer of professional <br> <br> search through the major search sites will be a lot helmet impact testing machine manufacturers, can be said to be everywhere, but it is less true professional In few cases, only a truly professional manufacturer who understands standard research standards can produce qualified and high-quality products.
How to judge whether the manufacturer is professional? First, look at the company website. You can see whether the helmet detection equipment is listed separately in the product list and whether it can test all the testing performance of the helmet. According to the new national standard GB/T2812-2006 "Hard Hat Test Method" and GB/T2811-2007 "Hardware", it can be learned that there is a helmet impact absorption performance, helmet puncture performance, and lateral rigidity of the helmet. , safety helmet chin straps, helmet vertical spacing, hard hat wearing height, helmet anti-static performance, helmet insulation performance, safety helmet flame retardant, hard hat pretreatment, helmet pretreatment, helmet immersion test , Hard hat ultraviolet radiation pretreatment thirteen tests, if the manufacturer is professional enough, the thirteen tests will have the appropriate testing equipment testing. Only manufacturers who specialize in producing helmet testing equipment can truly understand the relevant standards, and then truly research the helmet crash test machine that strictly meets the standards, and pay attention to the qualification of this series of products. Second, business professionals must understand the product specialty. The business staff will be the compass of the procurement staff. Only when the navigation is correct, the user can buy the products that are suitable for themselves to meet their real needs. Only in this way will the users not spend money to buy something that is not suitable for their own needs, does not meet the testing standards, unqualified product.
Second, determine whether the helmet impact test machine meets the national standard
GB/T 2812-2006 “Hard Hat Test Method†standard focuses on the requirements of the helmet impact test machine as follows:
1. Impact puncture height: 1000mm ± 5mm (the height of the corresponding drop hammer puncture hammer from the top of the test helmet).
2, drop hammer: quality 5-5.01kg, hammer head is hemispherical, radius is 48mm, material is 45# steel, symmetrical appearance.
3, puncture hammer: mass of 3 - 3.05kg, puncture part of the cone angle of 60 °, cone tip diameter 1mm, length 40mm, maximum diameter 28mm, hardness HRC45 (standards require puncture hammer to be in the center of the cap diameter within 100mm At the weakest point of the structure, the user also needs to pay attention when purchasing the product. Some problems due to the structure of the puncture hammer are not at the center.
4, 1 #, 2 # head model: to comply with the provisions of GB/T2812-2006 Appendix A. The mass is 5.0kg ± 0.1kg, which consists of the main body of aluminum or magnesium alloy plus weight. The top surface of the headform is made of metal and should be repaired after impact.
5, force sensor: Measuring range 0-20000N, frequency corresponding to the minimum 5kHz, dynamic force sensor.
6, data processing devices: data processing devices and measuring sensors supporting the final record and display the impact of the value of the device. The impact force acquisition limit is 500N, the continuous sampling time is not less than 40ms, the sampling frequency is not less than 20KH, and the maximum value within the sampling interval is automatically acquired and displayed.
7. Measurement Accuracy: ±2.5% of full scale range.
8. Power-on display device: If there is a circuit closed circuit device, it can signal that the puncture hammer has contacted the head mold.
The above requirements are the basic standard requirements for the helmet impact tester. These can be compared with the technical indicators provided by the manufacturer's product technical data, and then the non-professional manufacturer that does not meet the standard can be eliminated accordingly.
Technical information Three, buy a helmet impact testing machine Note <br> <br> some manufacturers helmet impact test machine is based on the standard list out directly from interception or other professional manufacturer in the information over, but it Whether its own product meets the standards still needs further verification. These also require the user to pay attention when purchasing.
Some technical indicators can be directly verified, but some, for example, whether the helmet impact tester sensor uses a 5000HZ dynamic sensor and whether the data processing device continuously samples, these can only be verified by a third-party testing agency. The third-party testing agency of the 5000HZ dynamic sensor of the helmet impact tester only has the qualification of the China Institute of Metrology, and any other third-party testing agency does not have the measurement qualification of the 5000hz dynamic force sensor. If the measurement report used by the manufacturer is not China Measurement Scientific Research Institute, then we can determine that this equipment department meets the requirements of the new standard, can not be identified by the relevant state departments, users can allow manufacturers to provide the helmet when the impact test machine calibration certificate, the authenticity of the certificate can be The China Academy of Metrology Sciences is verified by the certificate number on the certificate.
Other equipments for the helmet impact tester include: ZM-812 helmet lateral rigidity tester, ZM-813 helmet chin strap strength tester, ZM-815 helmet chin strap strength lateral stiffness tester, ZM- 816 helmet vertical spacing wear height measuring instrument, ZM-817 helmet fire resistance tester, ZM-818 helmet anti-static performance tester, ZM-819 hard hat electrical insulation tester, ZM-820 helmet UV pre-test Treatment box, ZM-821 hard hat high temperature pretreatment box, ZM-822 hard hat low temperature water immersion pretreatment box This article for Qingdao Zhong Bang Instrument Co., Ltd. original article, if you need to reprint, please add the source of the instructions, without permission, unauthorized use, Responsibility!
Bidet Sprayer,Toilet Bidet Sprayer,Stainless Steel Bidet Kits,Non-Electric Toilet Bidet Sprayer
kaiping aida sanitary ware technology co.,ltd , https://www.aidafaucets.com