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The characteristics of gray cast iron parts: wear resistance and good shock resistance, because of graphite in the cast ironis conducive to lubrication and oil storage, so good wear resistance. Similarly, due to the existence of graphite, the shockresistance of gray cast iron is better than that of steel. Process performance is good, because of the high carbon content ofthe gray cast iron, close to the eutectic composition, so relatively low melting point, good fluidity, shrinkage of small, so it issuitable for casting of complicated structure or thin-walled castings, the graphite machining easy formation of chip breaking,so grey cast iron can machinability is superior to that of steel.

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Cast iron platform

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Product description

Cast iron plate is also known as cast iron platform, the appearance is basically box-type, working surface has rectangular, square, round, etc. , the material is HT200-300,QT400-600, Using scraping technology, the working surface can be processed V-shaped, T-shaped,U-shaped grooves, swallowtail grooves, round holes, long holes, etc., is used for workpieces, Equipment inspection, dashes, assembly, welding, assembly, riveting flat reference gauge.

Artificial annealing: After 600-700 degrees of high-temperature annealing in the return kiln.

It mainly includes the thickness, side circumference thickness and height of the platform, as well as the thickness, height and density of the bottom gluten plate. It mainly includes the thickness, side circumference thickness and height of the platform, as well as the thickness, height and density of the bottom gluten plate.

Cast iron platform level 0 and level 1 platforms do not allow pores and sandholes,level 2 and 3 The stage can be filled with pore sands with solids of the same material as the platform. Note: The hardness of the filler must be lower than that of the platform itself.

Cast iron plate can also be called cast iron platform can be used to test mechanical parts flatness, parallelity, straightness and other shape tolerances of the measurement reference, can also be used for precision parts of the dashes and measurement, experiments, riveting welding, welding, foundation, workbench, etc. , the work surface using scraping technology.

Cast iron platform material: high-strength cast iron HT200-300,after two manual treatment (manual annealing 600 degrees - 700 degrees and vibration aging) using the product's accuracy is stable, wear-resistant performance is good.

The overall specification of the cast iron platform is largely 4 m x 8 m, which can be stitched in multiple pieces, after wear, It can be re-repaired to restore its accuracy, and the flatness of parts can be verified by color coating method, which has the advantages of accuracy, intuitiveness and convenience. After scraping on the cast iron plate to promote the table seat, workpiece is relatively smooth, no hair sense, convenient measurement, to ensure the accuracy of the measurement.

The cast iron quality and heat treatment quality of the cast iron platform have a great impact on the performance of the plate, or the working surface is deformed by the residual internal stress, or the accuracy cannot be maintained due to wear resistance, or the roughness of the value is not achieved due to scraping difficulties. Therefore, the use of cast iron plate must pay attention to the choice of cast iron material, the use of aging treatment and other methods to eliminate the residual stress of cast iron plate.

Specifications	Accuracy level sm					Specifications	Accuracy level sm
Specifications	Level 0	Level 1	Level 2	Level 3	Fine planing	Specifications	Level 0	Level 1	Level 2	Level 3	Fine planing
100x100	4	8	26			2500x2500			72	180	270
200x100	5	10	20			3000x1000				168	248
200x200	5	10	20			3000x1500				174	154
300x200	6	12	24			3000x2000				184	275
300x300	6	12	24			3000x2500				186	276
400x300	6	12	24			3000x3000				210	300
400x400	6	12	24			4000x1000				210	300
500x300	6	12	24			4000x1500				210	300
500x500	7	14	28			4000x2000				219	310
600x400	7	14	28			4000x2500				228	340
600x500	7	14	28			4000x3000				240	360
800x500	8	16	32	80		5000x1500				249	370
800x600	8	16	32	80		5000x2000				255	375
900x600	8	16	32	80		5000x2500				264	390
1000x750	9	18	36	90		5000×3000				287	420
1000×1000	10	20	39	96		6000×1500				287	420
1200×1000		20	39	96		6000×2000				293	430
1500×1000		24	48	120		6000×2500				300	450
1500×1500		25	50	125		6000×3000				308	460
2000×1000		26	52	129		8000×1500				366	500
2000×1500			56	140		8000×2000				370	520
2000×2000			60	152	230	8000×2500				375	530
2500×1500			64	152	230	8000×3000				382	570
2500×2000			68	168	248