Cast iron plate, cast iron platform casting formation modeling is one of the key processes in the process of core making it on the casting quality, manufacturing cost, production efficiency, labor intensity and environmental pollution has very important influence. There are several kinds of cast iron plate casting method:Second, form the core making resin sand process: through the development of the bond economy, catalyst, or rarely contain pollution, and supporting environmental treatment equipment also studied at the same time, resin self hardening sand, cold core box from the hard process, warm box method and shell type (core) resin method are widely applied to process modeling of product of cast iron plate, cast iron platform, cast iron square box, plate bending, machine tool bed casting.Third, modelling core technology for water glass sand: improve the bonding performance through research on water glass purification and modification, water glass sand and used sand reclamation with

In everyday use, often in addition to iron maintenance to equipment and always maintain a good state, then I went to introduce in addition to iron daily maintenance knowledge:1.In addition to iron equipment of oil pollution, dust, coal and metal belt viscous iron to clear in time, to keep the equipment clean.2.In addition to iron reducer, bearing seat, etc. there is no exception to always check, of gearboxes and bearings seat timely filling, the filling oil.3.Check the wire source has no aging damage and at any time correction.4.Check the separator and there is no deviation correction at any time.In addition to the maintenance of iron is one of the most important things, we only earnestly the maintenance work can extend its service life.a

The use of a certain period of time, the parts of the hydraulic pump will gradually wear even damaged, it will reduce the pump running precision and performance, oil pressure not hit up, reduce the amount of oil, increased noise, vibration increases and so on each kind of abnormal phenomenon will the resulting.Hydraulic pump in daily use, the installation of the pump, oil, operation of the exclusion of failure if you can master, hydraulic pump parts wear or avoid damage can be greatly eased.Reasons for damage of hydraulic pump(1) wear and tearThe wear of hydraulic pump parts, like any part of the equipment, is the inevitable result of the mechanical operation. Under normal conditions of use, due to friction and chemical reaction and other factors, the long-term effect of wear and tear, which belongs to the natural wear and tear. This wear is not eliminated and avoided, but through careful maintenance and proper use of the pump, wear can be delayed, prolonged wear cycle.The causes and p

The so-called residual forging heat processing refers to the heat treatment deformation at high temperature is embryo of the workpiece material into a furnace heated to forging temperature and after heat preservation, austenite transformation occurred in the workpiece blank, then generates deformation during the forging process, final forging after the end, pre cooling and isothermal temperature we need to according to the different material, and then select corresponding cooling method, we need the structure and mechanical properties.The following are some common methods of waste heat treatment:1. The residual forging heat quenching deformation occurred in the forging process, end forging, pre cooling and isothermal to our desired temperature cooling mode by water or oil rapid cooling according to the requirements of different materials, quenching martensite organization this to get is quenching.2. Forging heat quenching and tempering: in heating furnace into the need of processing bl

Permanent magnet dry magnetic separator due to its own requirements and strength of the work, so it is particularly important to maintain daily maintenance, more important is the replacement of the maintenance of the oil.Attention should be paid to the use of the process:1.Permanent magnetic cylinder wall wear, if you find that the plaster off after serious wear and tear, do not delay to deal with re - hung immediately.2.There is no iron and other debris into the box body, such as debris should be immediately removed.3.Motor, and stepless transmission device and a permanent magnetic cylinder bearing overheating, bearing temperature generally not exceeds 35 degrees Celsius, the maximum limit is 55 degrees Celsius.4.Whether the transmission belt tension to a certain extent.5.Belt wear, found that there is serious wear and tear, belt replacement to choose the same as the replacement.6.Enough lubricating grease are placed on the all lubricating points, no speed oil level is normal, such as

Superior quality and strong performance and stability, and other aspects are all welded ball valve has, are common cast steel ball valve can not be alongside. Can be used in a variety of harsh environments, such as petroleum, chemical, power station, iron and steel industries, in use process, some details is must pay attention, can extend the welded ball valve service life.Regular ball valveAfter a period of time, the user must move the ball valve ball valve. The use of welding ball valve has a great role, but also can reduce the problem generated.1.Ball valve surface stains to clear, regular ball valve, you can reduce the accumulation of surface stains. Reduce the erosion caused by the surface of the ball valve, ball valve can be extended life.2.Regular ball valve, can be reduced because of external reasons, leading to a fixed ball valve can not be easily adjusted.Regularly clean the valve seatClean the valve seat is conducive to the user to control and operate the fluid, improve the

The most prone to the stamping die production problem is the mold failure, often caused by production, product production cycle is greatly affected. Mold cracking, breaking, up and so on are all belong to the mold damage, mold damage problems in processing, mold design, manufacturing process and the use of mold to find reasons. Therefore, the cause of the mold failure in the shortest time to find, reasonable maintenance.At first, whether the material is suitable is to be examined, whether a reasonable heat treatment process is carried out. Usually have a great impact on the heat treatment process of die materials. If the quenching of the mold to produce high temperature, method and time to master unreasonable, as well as the tempering frequency, temperature, the choice of the elbow is not appropriate, will lead to damage to the mold after entering the stamping production. Design not reasonable good blanking hole size or depth, easy to make the slot blocking, causing damage to the blank

Driving device, part rotating cylinder, tank and other components of the magnetic separator. Electric vibrating feeder, rotary drum, brush, ore bucket, mine, a frame and a driving device composed of double drum magnetic separator. Equipment acceptance, disintegration of cleaning, to adjust the drive part of the gear, bearing clearance, transfer tube and the trough body position relative to other is drum magnetic separator before installation should be carried out.Magnetic separation process:1.Choose the right installation location. Installed in the flat, sturdy concrete or steel foundation, magnetic separation machine support feet should maintain a stable and uniform, beware of the foundation caused by the uneven foundation deformation.2.Fixed after the first of the bottom beam pole head vertical shaft and the turntable - beam transmission installation excitation coil voltage withstand test, then in turn mounted transmission device, a bottom beam, beam, pole head, a turntable, a vertic

Solenoid valve in the use of the process will be a number of small faults, it is a headache, the following small series for us to sum up some of the common faults of the solenoid valve and the solution.1.Coil short circuit or open circuit:Detection method: the first measurement of the on-off with a multimeter, resistance results tend to be close to zero or infinity, that proves winding short circuit or open circuit. If the resistance measurement results of the normal (probably dozens of European), can not be said coil is without fault, please perform the following final test: a metal rod in the electromagnetic valve coil near put a small screwdriver, then the electromagnetic valve is communicated with the power, if magnetic reflected, so that electromagnetic valve coil is good, otherwise it is bad.Processing method: change the solenoid valve coil.2.Plug / Socket problems:Failure phenomena:If there is a plug / socket type electromagnetic valve and a metal reed socket may problems, plug

The molten alloy liquid is poured into a pressure chamber, which is a precision die casting, and the steel mould is filled with high speed, and the alloy liquid is solidified under pressure to form a kind of precision casting method. Precision casting has the following advantages.1.Product quality is goodSize precision high on the casting, generally can be reached 6 to 7, even up to 4; good surface smoothness, generally reach 5 to 8; high strength and hardness, strength increase 25-30% relative sand casting, but decreased the elongation of 70%; dimensional stability, good interchangeability, complicated and thin-wall castings can be die-casting.2.High production efficiencyMachine with high productivity, such as domestic J III 3 type horizontal cold empty die casting machine average eight hours can die-casting 600 ~ 700 times, small hot chamber die casting machine average every eight hours can die casting 3000~7000; long service life of the die casting die, a pair of die casting, the cl