Brazing of aluminum frame
Vacuum brazing, refers to the workpiece heating in vacuum chamber, mainly used for welding requirements of high-quality products and easy oxidation material.
Cold die steel heat treatment technology
The main failure in the form of cold mold overload failure , wear failure , failure and fatigue failure occlusal four forms .
Application: the role of alternating load workpiece twisting, bending, etc., requires the Department of the surface layer to withstand higher stresses than the heart or abrasion on the surface raised the need to strengthen the requirements for carbon content We = 0.40 ~ 0.50% of steel .
Stainless solution treatment
Description: solution treatment is to dissolve the matrix carbides, γ 'is equal to obtain a homogeneous supersaturated solid solution, when re-precipitation of fine particles to facilitate aging uniform distribution of carbides and γ' such as strengthening phase, and eliminate hot and cold stresses resulting from processing, recrystallization of the alloy.
SUS420 blade heat treatment
. performance requirements: the hardness and hot hardness (thermal stability). Mould should be maintained not change shape and size device developed rapidly in stress, hardness is an important performance index of die steel. Therefore, after the mold heat treatment should be sufficiently high hardness, such as cold working die general hardness of 55-65HRC, while the hot mold hardness can be appropriately reduced, generally in the range of 35-55HRC. Hot hardness refers to die conservation organizations and stable performance under the working conditions of high temperature hot items, has the ability to resist softening. Steel hardness depends mainly on the chemical composition of steel and heat treatment system, it is one of the important performance index of hot working die steel.
Vacuum gas quenching quenching quenching have two and fluid. Gas quenching the workpiece is filled with high purity coming neutral gas (such as nitrogen) for cooling the cooling after the vacuum heating chamber. Applicable to gas quenching martensite has a lower critical cooling rate of the material of high-speed steel and high carbon chromium steel.
Vacuum brazing, refers to the workpiece heating in vacuum chamber, mainly used for welding requirements of high-quality products and easy oxidation material. Vacuum brazing furnace includes a pressure vessel having a cylindrical side wall and door, door the position and size of the designed end can be closed cylindrical side wall.
vacuum sintering of powder
Vaeuum sintering of the powder in the powder under conditions of less than atmospheric pressure sintering.
Bright annealing commonly known as bright annealing is mainly for the temperature in the airtight space heating annealing slowly in a confined space cooling at least 500 degrees below the natural cooling will have brightness and no decarburization is.
Su's heat treatment Co. Ltd. was founded in 1990, after decades of development, scale is continually expanding, now located in Pak Sha Road manhole town Baoan District Shenzhen City Bridge Second Industrial Zone No. 14, the factory covers an area of 3000 square meters, the main business is to take all the metal, alloy steel, beryllium copper, high speed steel, heat treatment cryogenic treatment (-196 ℃), nitrogen gas, liquid nitrogen, QPQ salt bath production line, high-frequency quenching, blackening and carburizing, the surface of hard and stainless steel processing.
Superb technology, i...
And Sue's cooperation has more than 10 years. The feeling is very good, the heat treatment technology is good, service attitude is very good. Look forward to a long pleasant cooperation, also hope Su to bigger!MORE>>
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Feel the technical quality of Su, Su's team appearance feeling, feel the Su's attentive service! I have to say, vacuum heat treatment sushi is really good! I firmly believe that hand in hand with Su, a deep strategic cooperation, the development of both sides will be better and better.MORE>>
Heat treatment more than 40 years experience, it is China Heat Treatment Association, the Guangdong Provincial Association of heat treatment unit
Optimization of the enterprise, and external resources and improve efficiency. Su's, has completed the ERP management system.
Distortion, high-quality and longer life
In order to ensure processing of the each product to achieve "zero defect", the Soviet Union's in every aspect of manufacturing multilayer inspection program have been strictly sophisticated manufacturing technology and strict quality assurance system; to ensure product quality qualified.
Have China is currently the most advanced heat treatment equipment
Advanced and perfect production equipment can meet your diversified heat treatment requirements. More close ChengLong vacuum oil quenching furnace, close ChengLong vacuum gas quenching furnace, ChengLong vacuum tempering furnace, conventional quenching oven, large bright carburizing, nitriding, quenching, mesh belt automatic production line, the well type carburizing furnace, pit type nitriding furnace, cryogenic, cryogenic processing system as well as the QPQ production line.
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Job shop 24 hours of operation, and cooperate with the team, to make our company can provide a rapid and stable in the pearl river delta's services.
Solid solution treatment with specimens of different medium cooling and then after aging treatment, the sample and then observed under the transmission electron microscope, can see all kinds of alloy sample distributed uniformly in the matrix with spherical particle zeta phase, observation can be seen in the water sample solution after aging precipitation of zeta phase number and mass more small, oil cooling sample time, air cooling and furnace cooling sample precipitation zeta phase are relatively few in number and thick.2014-09-30
Effect of Annealing on non synchronous rolling high purity aluminum foil structure (1) of high purity aluminum foil asynchronous rolling micro orientation rheological behavior and traditional rolling different surface texture; both sides of the same type, the number of cubic texture of different, asymmetrical distribution.2014-09-06
Pick from 930 ℃ heating, quenching in 10%NaOH solution, can obtain martensitic organization all, and a large number of lath martensite, give full play to the performance potential of materials. Tooth body materials are brittle zone between 370 ℃ -410 ℃.2014-09-05
Reducing solution cooling rate in 1420 Al Li alloy during the solution heat treatment, the alloy resistance to stress corrosion and electrochemical corrosion resistance performance.2014-09-04
Cryogenic treatment is not all retained austenite transforms into martensite, even if repeated cryogenic treatment, 5%-10% still retained austenite, cryogenic treatment will be retained austenite block breaking into film. and distribution in the martensite edge, can reduce the stress concentration at the edge, is beneficial to increase the strength of steel. But between martensite stable residual austenite microstructure composite tissue membrane and dispersed Markov body in different orientation of carbide. Have strong toughness, best.2014-09-03
20CrMnMo steel small gear by using nitrogen methanol atmosphere at 860 ℃ carbonitriding, ammonia accounted for about 3%, the total volume of furnace gas carbon potential 0.8% more appropriate. The nitrogen methanol atmosphere of Carbonitriding with energy saving, environmental protection, safety, low cost and fast penetration advantages.2014-09-01
30A steel after quenching, tempering after normalizing compared with state, not only the anti crack ability, and ability to resist crack propagation is.2014-08-27
Under the condition of market economy, various heat treatment process (especially the new process) competition has a survival, development or eliminated, ion nitriding process with its unique characteristics has won the market place. (1) unique heating methods: the workpiece to glow discharge of the heating, which can save energy and easy to realize uniform heating.2014-08-26
(1) fine car increase stress relief annealing, and improves the stress relief annealing temperature. In does not affect the matrix organization as the premise of sorbite as much as possible under high temperature, and prolonging the holding time, the machining stress fully release. Increase the stress relief annealing in nitriding fine car, stress can eliminate the rough machining, finish machining to improve dimensional stability.2014-08-23
Effect of the shape of section symmetry: after nitriding after inspection found, with key aspects of convex surface, due to the stress value is higher than that of no keyway position high, stress imbalance, resulting in distortion. Part section asymmetry, nitriding parts surface caused by the uneven distribution of stress is the main cause of nitriding distortion.2014-08-21
Shenzhen Su's heat treatment of heat treatment gas sources and metallurgical problems in the standards 1: the heat treatment industrial use natural gas, propane gas, acetylene gas, methanol gas in addition to the provisions of inorganic and organic sulfur, also the water is also required, and stressed that the lower the better.2014-08-11
1: by adding Ni, Mo, Mn alloying elements and proper austenitizing temperature quenching to obtain good performance of the martensite / bainite dual phase grey cast iron.2014-08-06
Shenzhen Su's heat treatment and compound modification processing of Zr and Ti on the microstructure of ZA27 alloy obtained three conclusions (1) the phase structure of titanium and zirconium compound modification does not change the ZA27 alloy, but the as cast microstructure of ZA27 alloy in primary α phase from coarse dendritic developed into small petals dendrite2014-08-01
Alloy steel heat treatment process of the role played by: C: plays an important role on the strength of steel, but the carbon content should not be too high or too low, too high will affect the welding performance and increased brittleness, low strength of steel would be decreased.2014-07-29
Copper alloy C194 after 875 ℃ × 60min after solution treatment, reached the maximum supersaturation, and fine grain size, uniform distribution.2014-07-23
Shenzhen Su's heat treatment has been deeply mechanism of cryogenic treatment on steel, and basic consensus, the main point of view2014-07-15
line cutting the workpiece blank size, according to the parts to determine the size, not too small. In general, cutting room should be located at the middle or leave blank blank edge is far not easily distorted position, usually blank margins should take about 10mm.2014-07-04
In order to prevent and reduce distortion, cracking, the need for linear cutting parts, deal with the material selection, heat treatment, heat treatment process each link until the finished should fully concern and attention.2014-07-03
Causes of quenching distortion and cracking of the linear cutting 1, the structure of parts (1) the long and narrow shape cavity, lug parts easy to distortion, distortion and complex shape, the ratio of length to width, cavity and the border width ratio. More complex shape, length width ratio and the cavity with the border width is bigger, bigger distortion. Distortion rule is cavity central sag, and the convex block is usually warping. (2) cavity quenching complex shape, easy to produce crack in the corner, and even prone to cracking, its occurrence with the material composition, heat treatment process. (3) cylindrical thin wall parts, if the wall is cut, easy to produce distortion, are generally round to oval; if the cutting gap, easy to produce cracks in the cut through time. (4) from the outside into the deep notch easy distortion, distortion of mouth adduction, depth and material distortion and notch on the properties of the.2014-07-02
Magnesium alloy after solid solution treatment without artificial aging can increase the tensile strength and elongation, and obtain the maximum toughness and impact resistance. Due to slow diffusion of alloy magnesium alloy elements, and therefore requires a longer heating time to ensure the full solid solution strengthening phase.2014-07-01
The fast precooling isothermal treatment process, through the rapid pre cooling increase the supercooling degree, can improve the speed of the ball, the annealing time is shortened to the traditional process of 1/7~1/10.2014-06-27
Expand the application range of GCr15 steel, GCr15 steel M general quenching ring effective wall thickness below 12mm, but the BL quenching due to nitrate cooling ability, if the mixing, series, water and other measures, effective wall thickness of ring can be expanded to about 28mm.2014-06-25
Pulse gas nitrocarburizing is in low vacuum and pulse amplitude (pressure and pressure difference), a new process to keep a certain time for chemical heat treatment, when the furnace pressure at low pressure, slit and hole in the atmosphere were forcibly discharged, red gas and forced to join the fresh gas gas exchange, can reach any part of the furnace, and the fan mixing, the atmosphere is very uniform, which can solve the small hole (micro), deep hole, blind hole parts layer inhomogeneous problem. Practice has proved, two pieces of sample are attached to each other, nitrocarburized tightly veneer with flat surface had no significant difference, so it may be in the production of the packing work, increasing the loading amount, improve the utilization rate of equipment.2014-06-19
The heat treatment process, due to various reasons in the Hardened Mould often need to be re quenching and tempering, such as leakage processing, using new quenching correction of deformation, failure mode, hardness, repair re selection process changes, heat treatment operation errors etc.. Re quenching need not to need to add one annealing, normalizing, become the relevant technical personnel need to consider. The past is to add another annealing, normalizing2014-06-12
Heat treatment industry is an intermediate step in the industry, and its development has many peculiarities machinery industry will be affected by the impact of industrial materials and energy industrial development, while the heat treatment industry has its particularity development, as its many businesses, small scale of development, high energy consumption, serious pollution. Because the heat treatment industry should be targeted for development. For this heat treatment industry experts on development strategies are analyzed.2014-05-13
In 2011, the State Council promulgated the "Twelfth Five Year Plan" of economic construction, according to the data analysis, the "12th Five Year Plan" period, China's development is still in the important period of strategic opportunities. But along with the industrialization, urbanization and consumption structure upgrading, China's energy demand is still rigid growth. But in recent years the domestic and international for the restriction of resources and environment is becoming more and more intensified, China is facing the energy-saving emission reduction in the 12th Five Year Plan period, the situation is still very grim.2014-05-13
Since the 70s of last century, the international community put forward the idea of pre-hardened, but because machine tools and cutting tools stiffness constraints, can not reach the pre-hardened mold hardness hardness, so pre-hardened technology R & D investment is unlikely.2014-05-05
In addition to the work required mold base with reasonable sufficiently high strength and toughness, the surface properties of the performance and service life of the die is critical. Mold surface treatment technology, through surface coating, surface modification or composite processing technology to change the mold surface morphology, chemical composition, structure and stress state in order to obtain the desired surface properties of systems engineering.2014-05-05
Ductility and toughness phenomenon when heated in hydrogen-rich atmosphere, known as hydrogen embrittlement of high strength steel. Workpiece through the addition of hydrogen embrittlement occurs processing (such as tempering, aging, etc.) can eliminate hydrogen embrittlement, vacuum, low hydrogen atmosphere or an inert atmosphere heated to avoid hydrogen embrittlement.2014-05-05
When steel is heated, the surface of the carbon with the medium (or the atmosphere) of the oxygen, hydrogen, carbon dioxide and water vapor react, reducing the surface carbon concentration is called after the decarburization, from steel hardening surface hardness, fatigue strength and reducing the wear resistance, and residual tensile stress formed on the surface mesh is easy to form a surface crack.2014-05-05
Non-magnetic austenitic stainless steel and die steel, including high fierce austenitic steels. After heat treatment with high resistance to intergranular corrosion, does not produce the magnetic induction. Meng series austenitic steel because of its high work hardening phenomenon, cutting more difficult, after heat treatment have better overall performance.2014-05-05
When heat-treated material alloying elements on the protection of high-temperature alloys using heat treatment furnace heat treatment, due to modern high-temperature alloys matter what is the matrix elements are complex alloy system, they use solid solution strengthening and grain boundary strengthening second phase three means for strengthening alloy strengthened.2014-04-14
Su's heat treatment (Shenzhen) Co., Ltd. Guangdong ICP No. 14020634
service hotline: 0755-29721819
Fax: support for 0755-27295795, 0755-27415741
Company address: Shenzhen, Baisha bridge Second Industrial Zone No. 14