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Instructions for use of steel bar straight thread rolling wheel

1. Product introduction: The thread rolling machine has the strength of independent processing, and can be processed according to the manufacturer's drawings. Among them, the rib stripping and rolling straight thread machine tool has the following features: it can directly set the normal thread and reverse the thread without changing the machine head; replace the blade and thread rolling wheel without dismantling the machine head; the threading efficiency is high, which is more than 50% higher than other models; It can be used at both angles of 60 degrees and 75 degrees. The product has the advantages of high precision, good effect and long service life, and is widely used in construction, highways, bridges, tunnels, culverts, industrial and mining industries. The thread rolling machine is a multi-functional cold rolling forming machine tool. The thread rolling machine can roll the thread, straight grain and oblique grain of the workpiece in the cold state within its rolling force range; the rolling of straight teeth, helical teeth and helical spline gears Rolling; straightening, reducing, rolling and various forming rolling. The machine has a safe and reliable electro-hydraulic execution and control system, allowing each working cycle to be selected from three modes: manual, semi-automatic and automatic. Then the thread rolling wheel is a tool that uses metal plastic deformation to roll out the thread on the thread rolling machine. 2. How to use the product: 1. The alignment of the thread rolling die is not correct, the rolled part has an axial displacement, and the tooth pattern is subjected to two stresses of shearing and extrusion; 2. The size of the thread blank to be rolled is uneven, the surface is not cleaned, and there are grinding wheel foam, scale and dirt; 3. The precision of the thread rolling machine is poor, the vibration is large, and it is in service under abnormal operation; 4. The thread rolling wheel must be fully demagnetized before leaving the factory, leaving residual magnetism, which will accelerate wear and failure due to the absorption of fine iron particles by the tooth lines during work; 5. Lubricant is not added during rolling, resulting in dry friction, causing the temperature of the cusp to rise sharply to exceed the tempering temperature of the rolling wheel, and the excessive tempering of the tooth pattern is softened, resulting in inverted teeth and stacked teeth failure 3. Features of straight thread rolling wheel: 1. Good alignment, stable performance and high joint strength. 2. Easy to operate, high energy saving, high material saving, high work efficiency, fast speed, no open flame, no pollution, not affected by the climate, and can be constructed around the clock. 3. It is not limited by the type and specification of steel bars, and has a wide application range of φ14-φ40mm. 4. The machine is small in size, light in weight, low in power consumption, and energy-saving. 5. It can be prefabricated and shorten the construction period. 6. Saving steel and good economic benefits. 4. The development trend of straight thread rolling wheel: The straight thread rolling machine is to adapt to the rapid development of the current construction industry and the increasing number of reinforced concrete structures, and to meet the requirements of a large number of steel bar connections. Our company Shanghai Hufeng Machinery Co., Ltd. successfully developed 、Developed a series of steel bar rib stripping rolling straight thread forming machines and connecting sleeves with international and domestic advanced levels, as well as steel sleeve tapping machines and car outer circle chamfering machines. The price is cheap and the quality is good, and has been well received by everyone.

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Features and uses of steel bar straight thread rolling machine

The steel bar straight thread rolling machine is used to cut and roll the thread once to achieve the purpose of reinforcement and thread processing of the steel bar end, which solves the problem of pretreatment of the steel bar end before processing, and the similar equipment needs multiple times In this way, the on-site process processing and multiple steel bar handling are reduced, and the on-site production and processing efficiency is improved; the thread rolling machine can use one thread rolling head to realize rolling processing of various specifications of steel bars, which solves the problem of similar equipment. One thread rolling head per specification is required for processing straight threads at the end. The thread rolling machine adopts internal cooling liquid, which solves the problem of chip removal during rolling processing. It has high automation intensity, and it automatically stops when feeding and resets. Rib stripping straight thread rolling machine for steel bar is a special equipment for processing straight thread head of steel bar. The end of steel bar is stripped round by rib stripping knife, and then three hollow thread rolling wheels are used to roll the straight thread of steel bar, so as to achieve the straight thread of steel bar. Quality requirements for thread forming. Make the ribbed steel bar straight thread connection meet the A-level connection standard requirements of JGJI07-2003 "General Technical Regulations for Mechanical Connection of Reinforcement". The thread rolling machine is added with nine specifications of Φ16-Φ40mm steel bars in GB1499-1998 "Hot Rolled Ribbed Steel Bars for Reinforced Concrete". Shanghai Hufeng Machinery specializes in the production of steel bar straight thread rolling machines, steel bar connecting sleeves, and undertakes steel bar construction projects. Welcome customers to consult and negotiate.

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Analysis of China's construction machinery market in 2013

Analysis of China's construction machinery market in 2013

In recent years, the rapid development of China's economy and infrastructure construction has driven the full-speed growth of China's hoisting construction field. Especially in nuclear power, petroleum and petrochemical, steel bar connection and other fields, with its leading equipment and advanced technology, steel bar joint production enterprises not only lead the development of China's steel bar connection technology construction field, but also become a new benchmark in the global construction field. Since 2012, the world and China's economic trends still show some uncertainties. Under unprecedented challenges, the global and Chinese steel bar industries need to realize upgrading and transformation faster and more thoroughly. China has entered a very sensitive period, and 2012 is a year of transformation in the Chinese market. As for when the entire market will turn warmer, the market will definitely rebound in 2013. In any case, the current global economy is in a very sensitive period, and the world is looking forward to economic recovery. The "golden decade" of the construction machinery industry may not appear again in the short term, but in the long run, the future will undoubtedly be positive of. 2012 is a critical year for China to achieve transformation. China is already at the crossroads of development, and China has also become the focus of the world. Some time ago, the National Development and Reform Commission approved a trillion-yuan infrastructure investment project within two days, igniting local investment enthusiasm. Some new investment plans, especially in western China, still have unlimited potential. By 2013 at the latest, China’s construction machinery market will recover.

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Connecting Technology of Thick Straight Thread Reinforcement Bar in Pier

Abstract of connection technology of pier thick straight thread steel bar: steel bar and other strong straight thread connection technology is a new generation of steel bar mechanical connection technology recently developed in my country. It uses cold heading machine to upset the end of steel bar first, and then uses special machine tool to upset The segment is threaded, and the two steel bars are connected by a connecting sleeve with internal threads. This technology combines the advantages of sleeve extrusion connection and taper thread connection, and has the advantages of high joint strength, stable quality, convenient construction, fast connection speed, wide application range, and good comprehensive economic benefits.   Construction technology   Straight screw connection technology such as steel bars is a new technology that has been successfully developed recently in my country.

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Introduction of straight thread rolling machine

The steel bar straight thread rolling machine is used to cut and roll the thread once to achieve the purpose of reinforcement and thread processing of the steel bar end, which solves the problem of pretreatment of the steel bar end before processing, and the similar equipment needs multiple times In this way, the on-site process processing and multiple steel bar handling are reduced, and the on-site production and processing efficiency is improved; the thread rolling machine can use one thread rolling head to realize rolling processing of various specifications of steel bars, which solves the problem of similar equipment. One thread rolling head per specification is required for processing straight threads at the end. The thread rolling machine adopts internal cooling liquid, which solves the problem of chip removal during rolling processing. It has high automation intensity, and it automatically stops when feeding and resets. Rib stripping straight thread rolling machine for steel bar is a special equipment for processing straight thread head of steel bar. The end of steel bar is stripped round by rib stripping knife, and then three hollow thread rolling wheels are used to roll the straight thread of steel bar, so as to achieve the straight thread of steel bar. Quality requirements for thread forming. Make the ribbed steel bar straight thread connection meet the A-level connection standard requirements of JGJI07-2003 "General Technical Regulations for Mechanical Connection of Reinforcement". The thread rolling machine is added with nine specifications of Φ16-Φ40mm steel bars in GB1499-1998 "Hot Rolled Ribbed Steel Bars for Reinforced Concrete". Shanghai Hufeng Machinery specializes in the production of steel bar straight thread rolling machines, steel bar connecting sleeves, and undertakes steel bar construction projects. Welcome customers to consult and negotiate. Straight thread rolling machine is a new type of steel bar connecting sleeve technology. Its structural principle is to peel off a part of the longitudinal rib and transverse rib at the end of the steel bar to be connected by cutting, and then directly roll it into ordinary straight thread. , Connected with a special straight threaded steel bar connecting sleeve to form a steel bar connection. the The advantages of this connection method of straight thread rolling machine are as follows: 1. Good mechanical properties, safe and reliable connection: Since the end of the steel bar is rolled and formed, and the material of the steel bar is cold-worked, the strength of the thread and the steel bar are improved, which makes up for the weakening of the thread bottom diameter that is smaller than the base circle diameter of the steel bar base material. The influence brought by the connection makes the joint strength of the connection higher than the strength of the base metal, so that the base metal can fully exert its strength and ductility. the 2. Convenient connection: it can be flexibly operated in places where the steel bars are densely arranged in a narrow space. Convenient construction and high efficiency: the steel bar connecting sleeve is prefabricated in the factory, quality assurance: each on-site rolling wire head equipment can process nearly 400 joints per shift, which has incomparable advantages in large-scale construction and basement bottom plate construction , No pollution during construction, no open flame operation, good safety and environmental protection, and can be constructed around the clock. the 3. Easy to detect: No specific testing equipment is required during construction, and the quality of the joint can be measured by simply looking at the exposed wire teeth of the steel bar. Strong applicability: It is suitable for the connection of steel bars in all earthquake-resistant and non-seismic reinforced concrete structures, and it is also suitable for bending steel bars, fixed steel bars, steel cages, super-long steel bars, etc., and occasions that cannot be rotated. Shanghai Hufeng Machinery Co., Ltd. specializes in the production of straight thread rolling machines for steel bars. The quality is good, the price is favorable, and the price is high. Welcome customers to consult and negotiate.

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Fujian province local standard for steel bar straight thread sleeve

Notice on strengthening the quality management of steel bar straight thread connection Construction bureaus of cities with districts: In order to strictly abide by the technical specifications such as "General Technical Regulations for Mechanical Connection of Steel Bars" (JGJ107), "Rolled Straight Threaded Steel Bar Connection Joints" (JG163-2004), "Technical Regulations for Steel Bar Rolled Straight Thread Connections" (DBJ13-63), and guarantee The quality of the straight thread connection of the steel bar is guaranteed to ensure the safety of the main structure. The relevant matters are hereby notified as follows: 1. Construction general contractors should standardize management. One is to strengthen the inspection and acceptance check of the steel bar connection sleeve, carefully check the validity of the type inspection report and the type and specification of the sleeve, and focus on the appearance quality, external dimensions, thread size and length and outer diameter of the sleeve must meet According to the "Technical Regulations for Steel Bar Rolling Straight Thread Connection" (DBJ13-63), and make corresponding entry acceptance and sampling inspection records; the second is to further improve the quality of on-site wire head processing, and deal with each specification during wire head processing Self-inspection of appearance quality, thread length and thread size, and inspection records shall be made. Qualified thread threads shall be protected by plastic protective caps or screwed on connecting sleeves to prevent damage during loading and unloading, and shall be classified according to specifications. The third is to improve the construction quality of the steel bar connection. When connecting the steel bars, a wrench or pipe wrench should be used for screwing. , the next process can only be carried out after the inspection results of each process are qualified. 2. The supervisory unit must strictly supervise. Strengthen the inspection and inspection of the connection sleeve; carry out the inspection of the whole process and process of the connection joint construction and process according to the regulations, and make inspection records; sampling should strictly implement the witness inspection system. For the acceptance batch of joints that fail the sampling inspection, the construction unit should be submitted to the design and other relevant units to study and propose a treatment plan, and urge the construction unit to make serious rectification according to the treatment plan, and report to the supervisory agency at the same time. 3. Construction administrative departments and quality supervision agencies should further strengthen supervision and inspection. Focus on checking the quality control of the construction and supervision units on the processing and installation of steel bar joints, and whether the test reports issued by the testing unit are true and valid; any quality problems found during the inspection should be promptly notified to the relevant responsible unit, and investigated and dealt with in accordance with relevant regulations. Our company (Shanghai Hufeng Machinery Co., Ltd.) has been undertaking Fujian steel bar straight thread technology projects for the past few years. It is very different from the steel bar joints in other places. It needs to be lengthened and thickened, and it needs to be peeled and chamfered, so the requirements are very high. High, but our company has been recognized by the local construction bureau and the government, and we hope that our company can cooperate for a long time.

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