Introduction:Steering joint test iron floor, dynamometer test room iron floor, chassis laboratory iron floor are mainly used in engine laboratories, automotive technology centers, automotive chassis laboratories, etc., providing a basic experimental platform for engines, dynamometers, automotive chassis, etc. We produce all kinds of machinery in Italy. For details, please consult: 18333443388.

Steering knuckleExperimental iron flooring,Dynamometer laboratory iron floor,chassisLaboratory iron flooring

Steering joint test iron floor,Dynamometer laboratory iron floor,The chassis laboratory iron floor is mainly used for engine laboratories, automotive technology centers, automotive chassis laboratories, etc., providing a basic experimental platform for engines, dynamometers, automotive chassis, etc.

1.Surface roughness of iron flooring processing6.3The accuracy of iron flooring is determined by3Grade requires manufacturing. The drawing of the iron floor in the laboratory indicates the form and position tolerances. The iron floor of the steering joint test should be easily filled with secondary grouting, and the secondary grouting should fully fill the inner cavity.

2. After the installation of the steering joint test iron floor, it should be able to achieve: the flatness of the entire length range should not exceed0.5mm, levelness0.2mm/mThe entire platform can be reliably grounded.

3.Dynamometer laboratory iron flooring material:HT250Chemical composition for castingsS＜0.12%，P＜0.15%And it needs to be nurtured and treated.

4.The chassis laboratory uses iron flooringM24Tighten the installation of anchor boltsM24Adjust the screw to level it.

5.The chassis laboratory iron floor is of reinforced type, with inner reinforcement thickness not less than50mm.

6.Connect the iron floor of the steering joint test with connectors,TType groove pressGB158Standard manufacturing, width and spacing as shown on the drawings.

7.Roughness of the machined surface of the steering joint test iron floor6.3. Platform accuracy according to3Grade requires manufacturing. The platform drawings indicate the form and position tolerances.

8. The iron floor of the dynamometer test room should be easily filled with secondary grouting, and the secondary grouting should fully fill the inner cavity.

9.The geometric shape of the casting is flat and regular; The overall structure is reasonable, and the reinforcement thickness is uniform and consistent.

10. Castings should undergo secondary aging treatment, including one manual aging treatment after rough forming and one natural aging treatment after rough planing. The natural aging time is4Months, ensuring the elimination of internal stress and long-term use without deformation.

11. Material of cast iron floor in dynamometer laboratoryHT250PressGB9439regulations,Casting rounded cornersR15~20.

12.Thoroughly remove the molding sand and burrs from the unprocessed parts of the steering joint test iron floor, round all sharp edges, and apply anti rust oil to the machined surface.

13.The steering joint test iron floor is equipped with lifting holes and grounding screw holes (not less thanM12）.

14.The chassis laboratory's iron floor covers are all made of45#Steel, with a smooth and even surface, free from burrs and sharp corners.

15.The service life of the cast iron platform shall not be less than30The bidder shall be responsible for all losses caused by quality problems such as displacement, deformation, and breakage of anchor bolts during the service life.

16.Castings should comply withHT250The chemical composition standards and the standards for achieving mechanical performance testing.

17.Casting defects such as looseness, sand holes, pores, slag inclusions, cracks, etc. are not allowed inside and outside the casting

18.The dimensions of the blank are only allowed to increase and not to decrease.

2.4All castings need to undergo annealing treatment.

　 Annealing process requirements: Annealing temperature 500℃~550℃, heating speed ≤50~100℃, insulation time3~5Hour, cooling rate ≤50℃, out of the oven200Remove from the furnace and air cool below ℃.

2.5Each casting in each furnace should be marked with a furnace number, and there should be one attached casting test rod in the same furnace number, which should be marked with the furnace number.

2.6Each batch of test bars shall undergo chemical composition analysis and mechanical performance testing, and a valid report shall be issued.

2.7The non machined surface of the casting needs to be cleaned with sand.

6grouting material

6.1.Selection of grouting material: Sika（Sika）Brand, specification and model:SikaGrout214.

6.2.When grouting, carefully read the ratio and pouring method of grouting materials to avoid irreparable consequences caused by improper use.

6.3.The concrete surface must be clean, solid, free of grease, oil stains, cement slurry, and small particles that are not firmly attached; The surface of metal (iron and steel) must be free of oxide scale, rust, and grease and oil stains; All absorbent substrates must be thoroughly soaked and saturated with clean water, and thenSikaGrout 214Before construction, it should be ensured that there is no visible water or small water pits on the foundation surface, and no accumulated water in the bolt holes.

6.4.Maintain sufficient pressure to ensure continuous flow of grout; Stir the grouting material with steel wire to ensure that all gaps are filled and the air inside can be freely expelled; Fill the anchor bolt holes as much as possible, and the grouting material should be continuously injected.

6.5.The grouting material should be injected from one side until it overflows from the other side to facilitate the discharge of air and fill the grouting. It is not allowed to grout from all four sides simultaneously.

6.6.Use wax based curing filmAntisol EOr other suitable methods can be used to maintain the exposed surface.

7FangtouTShape nut and pressure plate

7.1.FangtouTShape nut and iron floorTThe groove is perfectly matched, and the size requirements are shown in the figure8, picture9.

7.2.TThe material of the type nut isA3Steel, blackened surface; quantityM20of120One,M24of50One.

7.3.The material of the pressure plate isA3Steel, blackened surface; quantityM20of80A (picture)10），M24of20A (picture)11）.

7.4.The material of the fixing bolt isA3Steel, blackened surface; quantityM20×56of120One,M24×68of50One.

8Acceptance methods and standards

8.1.Mainly including equipment list, iron floor drawings, iron floor user manual and maintenance manual, purchased accessory user manual, and other related technical materials.

8.2.The chemical composition and mechanical performance test results of castings should comply withHT250National standards（GB9439、GB/T 4986Cast Iron Flat PlateJB/T 7974Cast Iron Flat Plate. The tenderer has the right to conduct on-site follow-up inspections and request re inspections.

8.3.The number of blocked repair sand holes on the working surface of each single cast iron flat plate cannot exceed4One.

8.4.Defects in castings that have not been accepted by the bidding party's representative and have been repaired by the bidding party without authorization shall be treated as scrap.

8.5.Mechanical processing finished products are randomly inspected according to the dimensions, smoothness, and positional tolerances marked on the drawings. The representative of the bidding party has the right to supervise and inspect the production process of the track pad in the winning bidder's factory at any time. The bidding party has the right to correct and handle the behavior of the winning bidder who fails to follow the manufacturing processes and standards required by the bidding documents.

9Other steering joint test iron floor,Dynamometer laboratory iron floor,For matters related to the chassis laboratory iron floor, please contact the manufacturer