[China Aluminum Industry Network] At that time, aluminum alloy cables were gradually approved by shopping malls, and increasing users plan to use aluminum alloy cables. However, due to the lag in regulation and supervision, it is difficult to discern whether the products on the market are mixed. Many companies that do not have the skills and equipment for the production of aluminum alloy cables are also promoting sales of aluminum alloy cables. This has brought great results to users. Confused, here are some specifications for users to refer to in the selection of manufacturers and goods, in order to choose to really high quality aluminum alloy cable. First of all, we must be able to select the companies that specialize in producing aluminum alloy cables. Such companies only focus on seminars and alloy cables, and they have more professional skills, more mature production skills and skills, more perfect production equipment, and very good skills, professionalism, Focused, focused, can be more excellent. The following specifications concerning the production skills, equipment, skill maturity, occupational norms, and experimental statements of aluminum alloy cables are used to identify aluminum alloy cable manufacturers for reference:
Survey Specification 1: Quality of Production
Aluminum alloy cable is mainly composed of conductors, insulation and armor (sheath). The basic three elements of the aluminum alloy cable are analyzed. The quality of the aluminum alloy cable can be seen approximately.
(A) Aluminum Alloy Conductor Bar: See if it is possible to independently produce a high quality aluminum alloy conductor bar
At present, there are not many domestic manufacturers with self-supporting aluminum alloy conductors, and there are few aluminum alloy conductor bar production lines capable of successive smelting, continuous casting, and continuous casting and rolling. If there is no independent aluminum alloy conductor bar, Production capacity, relying on commissioned processing, the so-called secret smelting, or other non-standard way to buy the aluminum alloy conductor rod, not only can not guarantee the basic quality of aluminum alloy cable, can not control the quality of the cable from the source. In addition to smelting, continuous casting, continuous casting and rolling aluminum alloy rod production line, but also depends on the production line of the continuous casting of billet cross-section size, the larger the cross-section, the quality of the aluminum rod rolled out of the more Excellent, "satisfied with the good steel." Excellent aluminum alloy conductor rods are the decisive factor for the electrical and mechanical functions of aluminum alloy cables. If they do not have high quality aluminum alloy rods, the subsequent processes cannot be changed, no matter how they are drawn, stranded, cabled, and outfitted. The fundamental quality of its conductors.
(B) Insulation: There are three views on the insulation; degree of cross-linking, stranded conductors, conductors, cable annealing
(1) Degree of cross-linking; Aluminum alloy cable is superior to copper cable in that the aluminum alloy cable is full of cross-linked polyethylene insulation. The working temperature of the cable is 90 degrees. It is precisely because of the choice of cross-linked polyethylene insulation, there is doubt about the degree of cross-linking, and the specification of professional aluminum alloy cable manufacturers should have a special cross-linking room.
(2) Stranded conductors; see the conductor stranding skills and conductor stranding production lines, the current domestic professional occupation of stranded conductors similar to the cable, produced by the stranded conductor, usually aluminum chips and burrs, endanger the insulation, Insulation effects, the formation of hidden dangers and shorten the insulation life. The pre-empted stranded conductor equipment is a semi-motorized, PLC-controlled nanotechnology conductor stranding device. This preemptive skill set is used, and the microcomputer controls the production of programmed, innovative cutting-edge nanotechnology to produce aluminum alloy conductor surfaces. No aluminum swarf, no burrs, no oil, no height, no scratches, no scratches, can effectively ensure that the cable insulation without any harm and damage, to ensure the life of the product is much higher than similar products.
(3) Annealing of cables for conductors: Generally, the internal stress of stranded conductors after stranding of conductors will be applied to the insulation, so that the insulation will be stressed for a long time, and the insulation ageing will be accelerated, affecting the service life of the insulation, and then directly affecting the service life of the cable. Number, this is the reason why the copper cable is not used for a long time. The aluminum alloy production plants in the United States all use conductor annealing techniques to deal with internal stress. The cable annealing skills and skills can further improve the electrical and mechanical functions of the goods, eliminate the internal stress occurring during the conductor twisting process, and effectively guarantee the service life of the insulation. So it is necessary to see if there is a cable annealing skill skill and equipped with a conductor cable annealing furnace.
(3) Armoring: See if there is a preemptive aluminum alloy interlocking armoring equipment
Many domestic manufacturers of aluminum alloy armor because of poor level of equipment, skill level is not up to standard, resulting in a wide alloy belt, armor wave crest distance is greater, the formation of cable stiff, inflexible and insensitive, simple dislocation, poor compressive function, role Not good. The current preemptive aluminum alloy interlocking armoring equipment is Canada's KALMARK aluminum alloy armored armored production line. The interlocking armor produced by the equipment is tight and the interlocking between the rings is not easy. Take off. Because of the small distance between armored wave crests, armoring at the same distance is related to other armored goods with more stress points and can withstand greater pressure without harming the cable cores. Because of the large number of wave peaks and the smaller meandering radius, the resistance to tortuosity is very good. This type of aluminum alloy armored equipment really arrived at the US specifications for aluminum alloy armored equipment.
Survey Specification II: Manufacturing Equipment
The chief investigative company is not equipped with preemptive aluminum alloy cable production manufacturing equipment and skills.
(1) Aluminum alloy conductor bar continuous casting and rolling production line
The key of aluminum alloy cables is the production of aluminum alloy conductors. Therefore, the time of selecting the manufacturers must first take a look. Is there any preemptive aluminum alloy conductor bar continuous casting and rolling production line, which is currently the first domestic aluminum alloy conductor bar? The production equipment is the continuous casting and rolling production line with the Italian skills and capable of successively casting large sections (3807mm2, other Italian imported production lines with large casting cross section can only reach 2400mm2). The 3807mm2 aluminum alloy billets have been subjected to vicissitudes and compression ratios. Rough-rolling, multi-pass successive fine rolling can obtain aluminum alloy rods with moderate strength, bulk density, good electrical conductivity, and excellent skill targets. This type of aluminum alloy rod is used for pulling out alloy wire. The conductive cores to the aluminum alloy cable conductors are a preferred commodity for cable stacking. If a factory runs a production line from an aluminum alloy conductor bar without preemption, the quality of the aluminum alloy conductor cannot be controlled from the beginning of the production source, then the quality of the aluminum alloy cable is even more unreliable!
(2) Stranded conductor production line
At present, usually the stranded conductors produced by the conductor stranding production line in the domestic industry usually produce aluminum chips and burrs, which endanger the insulation, seriously affect the insulation, and cause potential safety hazards and shorten the insulation life. At present, China's preemptive conductor stranding production line is a nano-scale stranding machine production line with sub-motor type and PLC program control. The aluminum alloy conductor produced by using nano-technology has no aluminum swarf, no burr, no oil, no height, No scratches, no scratches, can effectively ensure that the cable insulation without any harm and damage, to ensure the life of the product is much higher than similar products.
(3) Aluminum alloy interlocking production line
The current internationally leading aluminum alloy interlocking armouring machine production line is Canada's KALMARK aluminum alloy interlocking armouring machine production line. The production line is developed according to the U.S. skill specification for aluminum alloy chained armored cable, and its layer The special structure interlocked with the layers ensures that the cable is damaged by external strong external forces. Even if the cable is subject to large external pressure and external impact, the armor layer can also protect the electrical function of the insulating layer. The structure of non-magnetic armored aluminum alloy layer has also effectively improved the flame retardant rating of the cable, greatly reducing the risk of fire or fire on the cable, non-magnetic aluminum alloy armor also greatly reduces the eddy current loss of the cable. The aluminum alloy armored armored structure is lighter than steel armored armor, has no eddy current loss, is easy to install and easy to bend, and does not require a bridge device. It can reduce equipment costs by 20% to 30% and improve the power of the device.
Survey Specification 3: Inspection Statement
The company’s main investigations are whether the company’s products have been subjected to various types of experiments and inspections, such as product characteristics, fire resistance, flame retardance, smoke toxicity, and light transmittance.
(1) Three necessary skills statements: "Aluminum Alloy Conductor Data Inspection Statement", "Aluminum Alloy Conductive Creep Function Test Statement" and "Transition Terminal 1000 Thermal Cycle Experimental Statement". The first is a statement of whether the aluminum alloy conductor material meets the chemical composition requirements of the AA8000 grade requirement, the second is the statement that the aluminum alloy directly differs from pure aluminum, and the third is the reliability statement of the connection terminal. These three skills statements It is necessary to have a qualified aluminum alloy cable.
(2) Inspection statements of aluminum alloy cable goods issued by China's national inspection center for wire and cable, Wuhan State High-Pressure Research Institute of State Grid, and other important inspection organizations.
(3) State fire-resistant construction data quality supervision inspection Inspection statements such as fire-resistance, flame-retardant, smoke toxicity, light transmittance, etc. issued in the middle.
(4) When selecting halogen-free and low-smoke products, special attention must be paid to the state inspection report on the quality of fire protection building materials to check the middle of the smoke poisoning, light transmittance; current domestic manufacturers claim that the production of aluminum alloy cable halogen-free low-smoke, The information on the choice of practical commodities does not meet the demand for halogen-free low-smoke, which can be seen from the inspection statement. National regulations (GB/T20285-2006 data smoke toxicity risk classification) in the relevant rules of the safety level of the inspection of the drug; safety of tobacco poisoning: AQ1> AQ2> ZA1> ZA2> ZA3> WX; light transmittance is greater than 60%, In the meantime (AQ: security level, ZA security level, WX risk level). Aluminum alloy product inspection results, only need to reach the AQ level of tobacco poisoning target and light transmittance is greater than 60% is the actual halogen-free low-smoke products, it is indeed safe and reliable, even if the cable is burned will not release toxic gases, Laying, installation, and application are highly safe.
(5) As for other so-called evaluation statements, occupational certifications, etc., in practice, some companies are playing tricks. We all know that these things are all made by some professional agencies and issued by intermediary organizations. It is not difficult to get them by paying only the fees. These statements, confirmations, etc., cannot be stated or confirmed in terms of quality and quantity, and are not sufficient for reference.
Survey Specification No. 4: Independence of Intellectual Property, Skill Patent
Aluminum alloy cable in China is a new type of conductor data products, the current use of the specification does not have special rules for aluminum alloy conductor data, in order to prevent the source of unknown data skills, resulting in aluminum alloy cable product features, quality can not be guaranteed, the selection of manufacturers is necessary A proprietary intellectual property patent certificate with the conductor data and manufacturing skills. Is there a central aluminum alloy conductor melting formula and preparation of patented skills and self-reliance intellectual property rights, which is the basic condition for a company to have strong technical strength. As everyone knows, without the central skill of aluminum alloy conductors, it would be difficult to guarantee that it would be an authentic aluminum alloy cable with a bright advertising advocacy. The aluminum alloy formula with the core skills of the invention patent is the first requirement for the production of aluminum alloy conductors by smelting, casting, and rolling rods in the previous process. There is no actual aluminum alloy patented formula, and the preemptive continuous casting and rolling technology is equipped. Also a cup of water. The aluminum alloy data patent formula is a conditional condition for high-level aluminum alloy cable processing and manufacturing, skill and skills, and is a guarantee of excellent quality of aluminum alloy cables. It is a company's actual skill advantage.
Survey Specification 5: Quality Control
The cable is the arteries of power transmission, and it is related to the safe and smooth operation of power transmission in a company and even a region. The quality of aluminum alloy cables is of utmost importance and cannot be minimized. Production of aluminum alloy cable products and production of copper cable in the production of skills are very different, the production of aluminum alloy cable, requires many professional inspection equipment and perfect quality management system. Each batch of aluminum alloy cables is required to be inspected and inspected in various stages of production before it can be shipped. Investigating the sentiment of a manufacturer on quality control can be seen from the input of personnel, funds, and organizations. A professional aluminum alloy cable manufacturer should have a dedicated quality management unit, a chemical analysis laboratory, a mechanical function laboratory, and physical functions. Laboratories, spectral analysis laboratories, electrical function laboratories, etc. Excellent quality control of the company is from training aluminum alloy to continuous casting and rolling; drawing from aluminum alloy rods, pressing and twisting to heat treatment of conductors; extrusion from conductor insulation , cross-linked to the insulated wire core cable; later to the armoring, sheathing, routine experiment, packaging and delivery of each process has a perfect, severe scrutiny, that is, starting from the source to ensure that the output of the product The cable has a higher quality. The whole process of quality control of the produced products, the node is accurate to every minute, and marked in the aluminum alloy cable structure to ensure the quality of each inch of aluminum wire control traceability. One of the important inspection equipments in many inspection equipments is aluminum conductor material inspection equipment. The current internationally leading aluminum alloy conductor inspection equipment is Germany's full-spectrum direct-reading plasma emission spectrometer. Its inspection speed is high and its accuracy is high. Higher. The spectrometer is primarily used to check the chemical composition of the aluminum alloy material and the crystallization of the alloy. No preemptive inspection equipment can guarantee the quality of aluminum alloy conductor!
Survey Specification 6: Skill Specifications
National vocational standards for aluminum alloy cables have been submitted to the national competent authorities for partial review. If they are participating in the formulation of national regulations and are professionally engaged in the production of aluminum alloy cables, they must be powerful and influential leading companies in the professional world. Is the invention of aluminum alloy cable, the United States aluminum alloy cable manufacturing skills and installation experience to preempt the domestic more than 40 years, so, objectively speaking, the United States company, especially earlier from the United States to bring aluminum alloy cable skills and use the United States Standardized production of aluminum alloy cable manufacturers, more secure and reliable.
Survey Specification 7: Customer Cases
The use of aluminum alloy cables to cover the residential, commercial, industrial construction and other areas, the customer's response is very valuable, about the main point to understand the customer's use of aluminum alloy cable operating conditions, after-sale protection status, if the customer's cable appears in three days and two Doubt to manufacturers for after-sale protection, clarify the quality of the cable to be exquisite. A quick way to discriminate aluminum alloy cable manufacturers is to investigate power planning units. If an electric power engineering consulting and planning unit uses aluminum alloy cables for its own building project power transmission, then the supplier and the product must pass through. Adequate and close scientific arguments can be carefully selected.
Survey Norm 8: Value-Added Services
Domestic companies are usually used as copper cables to make aluminum alloy cables. Aluminum alloy cables are only one product in its product line. The idea of ​​operating aluminum alloy cables is also a train of thought for extending copper cables. Nowadays, the idea of ​​selling aluminum alloy cables by simply selling cables is now out of line with the needs of the times and social development. There is a high skill threshold for producing aluminum alloy cables. A strong aluminum alloy cable manufacturer is not only able to The supply of high-quality aluminum alloy cable products may also provide a full set of cable transmission processing plans, cable connection terminal processing plans, and assist customers with skills such as the "Project Skills Processing Plan" and "Cost Cycle Life Cost Analysis Statement". Business plan to assist customers in providing additional value-added services such as cable selection, installation guidance, personnel training, and operation monitoring. There is no professional strength, there is no attention to the profession of aluminum alloy cable, and the company prepares to serve the mood of aluminum alloy cable users for a long time. It is difficult to do.
Survey Specification 9: Field Survey
Because domestic cable goods are subject to inspection guidelines, there are no exceptions to the samples that are seen by customers in the professional world. These are all created by the Entrusted Gift Company. The statements issued by the inspection organization only serve as sample submissions. If there are doubts about the goods that are actually supplied, it is the user's interests that are harmful. Some unscrupulous manufacturers are short-cuts to the drilling policy. They use other inspection samples to check the samples of other manufacturers. They use the products of the regulatory factories as samples for their own products, fraud inspection organizations and users. , also said that since the inspection statement, the sample is also very beautiful, but the actual supply of goods and samples far from the difference, and can not guarantee the quality of the product. Therefore, it is better to conduct field investigations on the manufacturers, investigate the actual strength of the manufacturers, the quality of production, and ensure that the purchased goods and samples are common. If a manufacturer of aluminum alloy cable goods can ensure that the quality of the quality of the random sampling inspection is the same quality and quality as the samples submitted, it is guaranteed.
Survey Norm 10: Brand Civilization
From the company’s civilization, operation concept, and brand precipitation, one company can also feel the sentiment of a company dealing with aluminum alloy cables. It is vacant for some “green environmental protection†publicity and publicity slogans. It is still a solid supply of goods for customers. High-quality goods and services represent different operating personalities and emotions for aluminum alloy cable businesses and users. The former is false air and the latter is low and practical. It is the customer's point of view to think for the customer and the customer's interest in the priority position. It is to treat the customer as the same. Some unscrupulous manufacturers are swindling customers for commercial interests, and they have harmed the interests of customers after stealing dragons and turning phoenixes, such as using aluminum cables to falsely fill aluminum alloy cables, using counterfeit aluminum alloy cables to hit malls, and aluminum alloy cables and copper. When the cable specification is changed, it is presumed to be professional prestige, and unscientific arguments and practices are carried out. These actions not only endanger the interests of customers, but are even more fatal by leaving users with hidden safety hazards, which have a negative impact on the professional development of aluminum alloy cables. These bad actions are deeply exposed and criticized by our needs.
The above 10 specifications, with the first five, can be judged to be a qualified aluminum alloy cable manufacturer. If all 10 specifications are available, it is a superior aluminum alloy cable manufacturer. After the above 10 specifications, on how to choose a superior aluminum alloy cable manufacturers, we can make an accurate judgment. The vast majority of non-professional manufacturers that do not have the skills and equipment for the production of aluminum alloy cables have the ability to be eliminated. The company and the quality of the products so selected are probably safer and more reliable!
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