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introduction：1.Seal up and prevent rust The rust prevention cycle of mechanical equipment depends on the ambient temperature、humidness、Corrosive ingredients vary，According to our factory machinery and equipment into the warehouse、Deliver goods、Running condition，The mechanical equipment is oiled and packed into the box1-2Years or above。 2. Introduction of anti-rust agent： Mechanical equipment rust treatmentPSA-008Storage type rust inhibitor。The oil film of the antirust agent is thin、Uniform transparency，Strong rust resistance，Suitable for steel、iron、copper、aluminum、galvanize、Long-term oil seals made of various metals such as cadmium plating and its components；The oil has good fluidity，Moderate viscosity，Spray available、leaching、Brush and other methods to seal，For complex structures
2015-01-16 Reading quantity 1479
introduction：Physical properties of stainless steel Comparison of physical properties data of stainless steel and carbon steel，Carbon steel has a slightly higher density than ferritic and martensitic stainless steel，And slightly lower than Austenitic stainless steel；Resistivity according to carbon steel、ferriform、The order of martensitic and austenitic stainless steels increases；The order of the magnitude of the coefficient of linear expansion is similar，Austenitic stainless steel is the highest and carbon steel the smallest；Carbon steel、Ferritic and martensitic stainless steels are magnetic，Austenitic stainless steel is non-magnetic，However, magnetic properties will be generated when it is cold-worked and hardened to form a tensitic phase transition，Heat treatment can be used to remove the martensitic structure and restore its non-magnetic properties。
2015-01-15 Reading quantity 2950
introduction：The structure of electric forklift 1、Drive system The driving system is one of the key components of electric forklift truck。There are great differences in the structure of the drive system of various forklifts，There are also differences in the form of single motor arrangement。Because it is double motor drive，Good acceleration and climbing performance，High traction，Electronic speed adjusting system is adopted，Replace the original mechanical differential system，Usability has been greatly improved。 2、gantry At present，Most of the electric forklifts at home and abroad have adopted wide field of view gantry，The lifting hydraulic cylinder is placed on both sides from the middle。There are two positions for placing the hydraulic cylinder
2015-01-15 Reading quantity 2992
introduction：l)specification These are two different grades of lubricant,inGB 7631.2one87All are lubricants used in a wide temperature range。Both types of oils have low pour points,Excellent wear resistance、Low temperature fluidity and low temperature pumping。HV、HSAccording to the base oil, the lubricant is divided into mineral oil type and synthetic oil type,According to the40。CKinematic viscosity,HⅤOil content15、22、32、46、68、100Six grades，HSOil content15、32、32、46Four brands。 2)use (l)HⅤLow temperature lubricants are mainly used in cold areas or large temperature range and work
2015-01-15 Reading quantity 1607
introduction： The use of four-color printing machine color printed matter belongs to wet printing，Because yellow ink is the most used，If it is the first color, it will be stripped by the second color，Therefore, the yellow ink should be placed in the last color for printing，The amount of black ink is the smallest，It should be printed in the first color。therefore，The color sequence commonly used in Chinas four-color offset press is：black—Sky orchid—magenta—Yellow or black—magenta—Sky orchid—yellow，At this time, the yellow ink must be transparent benzidine yellow。The color order of magenta and blue mainly depends on their respective graphic area，The main color of the picture，Such as：Print with characters in the main（Can be called warm tone）The magenta can be printed after the sky blue，One color sequence before press
2015-01-15 Reading quantity 2821
introduction：An important measure to extend the service life of lubricants is the implementation of a comprehensive lubricant analysis program，By comparing the analysis results with previous analysis reports，The trend of its key wear characteristics can be understood。Such an analysis plan would help to discover the contamination status of the lubricant、Deterioration of lubricating oil、Abnormal machine wear and problems with sampling operations。 1.Learn about developments in the field of machine lubrication Lubrication products and technologies are constantly evolving，So you need to keep up to date。Knowledge of the plants lubrication system by managers and employees is essential to prevent shutdowns、Equipment maintenance、Avoid heavy losses
2015-01-15 Reading quantity 1595
introduction：Numbering and representation of steel ①Chemical components are represented by international symbols for chemical elements and national symbols，Use Arabic letters to indicate the content of ingredients： Such as：China、Russia 12CrNi3A ②A fixed digit number to represent a steel series or number；Such as：America、Japan、300Department of、400Department of、200Department of； ③Use Latin letters and order to form serial numbers，Use only。 Numbering rules of our country ①Use element notation ②use、Chinese pinyin，Open-hearth steel：P、 Rimmed steel：F、 Killed steel：B、A-class steel：A
2015-01-15 Reading quantity 2920
introduction： 1.Use reasonable cooling methods：The influence of the cooling process on the deformation of metal after quenching is also a very important cause of deformation。Hot oil quenching has less deformation than cold oil quenching，Generally controlled in100±20℃。The cooling capacity of the oil is also critical to deformation。The mixing method and speed of quenching affect the deformation。The faster the metal heat treatment cooling speed，The more uneven the cooling，The greater the stress generated，The greater the deformation of the mold。Can ensure the mold hardness requirements under the premise，Use pre-cooling whenever possible；The use of fractional cooling quenching can significantly reduce the heat stress generated during metal quenching
2015-01-15 Reading quantity 1461
introduction：Rolling bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Its a precision part.，Its use must also be carried out with corresponding care。No matter how high performance bearings are used，If used improperly，You dont get the high performance you expect。The use of bearings should be noted as follows。 one、Keep bearings and their surroundings clean Even if you cant see it
2015-01-15 Reading quantity 1552
introduction： A metal skeleton is like a steel bar inside a concrete member，Play a strengthening role，And the oil seal can maintain shape and tension。usual，Skeleton oil seal in the free state，Its inner diameter is smaller than the shaft diameter，That has a certain“Magnitude of interference”。therefore，When the oil seal is loaded into the oil seal seat and shaft，The pressure of the edge of the oil seal and the contraction force of the self-tightening helical spring produce a certain radial tightening force on the shaft，After a period of running，The pressure will quickly decrease or even disappear，consequently，The spring can compensate the self-tightening force of oil seal at any time， The outer edge of the oil seal makes the oil seal fixed in the cavity hole at the same time，Prevent fluid from rising from oil
2015-01-15 Reading quantity 1684
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