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Suzhou Dexin Ceramic New Materials Co., Ltd
Telephone: 0512-68182825
Circadian Hotline: 13776067838
Fax: 0512-68182835
Address: No. 65, Zijin Road, Huqiu District, Suzhou City, Jiangsu, China
Zip code: 215011

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Heating insulation riser

Product parameter

Heating insulation riser
1、 Introduction:
A heating riser used for castings, which is suitable for thin-walled pressure resistant castings with complex shapes and high quality requirements, such as ductile iron, alloy steel, non-ferrous metal castings, etc. The material of the heating riser is determined by weight ratio, with aluminum powder less than 30%, iron concentrate powder, iron oxide powder less than 25%, sodium nitrate, potassium nitrate less than 10%, sodium fluoride less than 10%, and the rest being aluminum ash, bauxite. The binder is selected as sodium silicate or resin, The amount added is less than 15% by weight. The maximum heating temperature of the riser sleeve is 1600 ℃, and the solidification time of the liquid metal in the sleeve is twice that of a regular riser, saving 80% of the riser metal and increasing the yield of ductile iron hydraulic parts by 25%
2、 Product features:
1. Improve shrinkage and reduce shrinkage defects.
2. Improve the production rate of the process and reduce the amount of molten metal used when pouring the same number of castings.
3. Improve the utilization rate of the smelting liquid and pour more castings with the same smelting weight.
4. Reduce the bore diameter and reduce the difficulty of cleaning castings.

Heating (insulation) riser series

Specification and model	effective modulus	Geometric modulus	Dimensions of each part (mm)						Volume（cc)
Specif.	Eff.M (cm)	Geom. (cm)	du	Du	do	Do	h	H	Volume
2/5	0.70	0.45	24.00	40.00	22.00	37.50	40.00	49.00	20
3.5/5	1.00	0.60	35.00	53.00	30.50	49.00	39.50	49.50	30
4/6	1.10	0.70	38.00	56.00	32.00	54.00	55.00	65.00	50
4/7	1.20	0.75	41.50	62.50	35.50	59.00	63.00	71.50	70
5/8	1.50	0.95	52.00	73.50	48.00	70.00	70.00	50.00	130
6/9	1.70	1.05	57.50	50.00	52.50	76.00	50.50	91.00	150
7/10	2.00	1.25	69.50	94.00	65.00	89.50	87.00	99.00	300
8/11	2.25	1.40	79.00	102.00	71.50	99.00	96.50	108.00	420
9/12	2.50	1.55	89.00	115.00	81.00	110.00	104.50	120.00	550
10/13	2.50	1.75	97.00	127.50	91.00	119.50	118.00	133.00	500
10/21.5	3.15	1.95	102.00	128.00	89.00	116.00	201.50	215.00	1400
12/15	3.20	2.00	118.00	154.50	112.00	148.00	130.00	150.00	1350

	Riser specifications	effective modulus cm	Geometric moduluscm	Volume cc	Do	do	H
	Specification	Effective Modulus	Geometric Modulus	Volume	mm	mm	mm
Straight barrel riser Cylinder	150x150	3.58	2.50	2649	195	150	150
	180x180	4.29	3.00	4578	230	180	180
	200x200	4.77	3.33	6280	250	200	200
	225x225	5.36	3.75	8942	275	225	225
	250x250	6.04	4.17	12266	305	250	250
	275x275	6.65	4.58	16326	330	275	275
	300x300	7.25	5.00	21195	360	300	300
	325x163	5.90	4.07	13515	385	325	163
		7.85	5.42	26948	385	325	325
	350x175	6.13	4.38	16828	415	350	175
		8.17	5.83	33657	415	350	350
	375x188	6.57	4.69	20753	440	375	188
		8.75	6.25	41396	440	375	375
	400x200	7.00	5.00	25120	465	400	200
		9.33	6.67	50240	465	400	400
	450x150	6.21	4.50	23844	515	450	150
		8.87	6.43	47689	515	450	300
		10.35	7.50	71533	515	450	450
	500x167	6.71	5.01	32774	565	500	167
		9.58	7.15	65548	565	500	334
		11.17	8.33	98125	565	500	500
	550x184	7.28	5.51	43693	620	550	184
		10.39	7.87	87386	620	550	368
		12.10	9.17	130604	620	550	550
	600x200	7.80	6.00	56520	670	600	200
		11.14	8.57	113040	670	600	400
		13.00	10.00	169560	670	600	600

Riser specifications	effective modulus cm	Geometric modulus cm	Dimensions						Volume
			Du	N	Do	do	H	h	Volume
			mm	mm	mm	mm	mm	mm	dm3
RND 80	1.99	1.37	70	39	100	78	100	27	0.42
RND 150	3.71	2.56	120	74	192	147	192	68	2.78
RND 180	4.33	2.98	132	88	222	175	222	90	4.44
RND 200	4.93	3.40	150	100	250	200	250	100	6.54
RND 225	5.54	3.82	160	113	278	225	278	110	9.32
RND 250	5.99	4.28	180	126	310	252	310	120	12.96
RND 300	7.08	5.06	210	150	360	300	360	140	21.31
RND 350	8.31	5.94	240	178	410	355	410	155	34.19
斜颈式冒口

American Specification	China Specification	Geo.Mod(cm)	Eff.Mod(cm)	Volume(dm3 )	Dimensions (mm)
American Specification	China Specification	Geo.Mod (cm)	Eff.Mod .(cm)	Volume (dm3 )	D	H	h	N	Tmin	Tmax
7x3.5x12	180	3.46	4.67	6675	177.8	304.8	217.70	88.9	12.7	17.5
8x4x12	200	3.83	5.17	8588	203.2	304.8	204.70	101.6	12.7	17.5
9x4.5x12	225	4.15	5.60	10663	228.6	304.8	192.00	114.3	19.1	23.9
10x4x12	250	4.46	6.02	12787	254.0	304.8	224.50	101.6	19.1	23.9
12x4.8x12	300	5.04	6.80	18234	304.8	304.8	153.90	121.9	19.1	23.9
14x5.6x12	350	5.5	7.43	24002	355.6	304.8	128.50	142.2	19.1	23.9

Heat insulation riser cover model	D	d	A	B	C	M	N	T
cap 150D	180	150	30	5	30	30	20	20
cap 180D	230	180	30	5	30	37.5	22	25
cap 200D	250	200	30	5	30	42.5	24	25
cap 225D	275	225	30	5	30	48.8	26	25
cap 250D	305	250	30	5	30	55	28	25
cap 275D	330	275	35	5	35	60	30	30
cap 300D	360	300	35	5	35	66.3	32	30
cap 325D	385	325	40	5	40	71.3	34	35
cap 350D	415	350	40	5	40	77.5	36	35
cap 375D	440	375	40	5	40	83.8	38	35
cap 400D	465	400	40	5	40	90	40	35
发热保温覆盖剂

Heat insulation covering agent
This product is applied to the surface of the exposed riser and can effectively isolate the thermal radiation and convection of metal liquid passing through the surface of the riser, reducing heat conduction. Proper use can improve the shape of the riser contraction, making the riser contraction surface appear flat bottomed, effectively preventing the formation of pointed conical contraction surfaces and central contraction pipes, and increasing the safety distance of the riser. This product is suitable for various grades of alloys and generally does not contaminate the furnace material. It can be used on stainless steel castings.
Reference addition amount

Riser diameter (millimeters)	Addition amount (kg)	Riser diameter (millimeters)	Addition amount (kg)
60	0.04	350	2.00
80	0.07	400	2.80
100	0.12	450	3.90
125	0.18	500	5.10
150	0.28	600	7.50
175	0.35	700	11.00
200	0.50	800	16.00
250	0.95	900	20.00
300	1.30	1000	27.00

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Heating insulation riser

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