This part specifies the definition and test method of the fluidity of dense and insulating refractory castables, as well as the molding equipment, molding method, curing and drying conditions for sample preparation. This part is applicable to the determination of flow value and sample preparation of dense and insulating refractory castables. YB/T 5202.1-2003 Preparation method of monolithic refractory materials sample Part 1: Refractory castables YB/T5202.1-2003 Standard download decompression password: www.bzxz.net

YB/T5202.1—20C3
The preparation method of refractory material sample includes the following parts: Part 1: Fire-making porcelain injection material: Part 2: Refractory plastic material; Part 3: Pre-fire coating material: Part 1: Fire-coating material; Part 5: Fire-spraying material. The standard number is ASM850-15.1S13.73157JISR5-992DIN5101-387, etc. Compared with the original standard, the following changes have been made: One standard name has been made:
—… The scope of the standard has been adjusted; One adopts the high-efficiency fear of the north to express the fluidity of the wash injection material; One stirs the machine to move the table of technology. The number of quarters has been determined; One stirs Mixing time and trial molding force supply parts "list change; - increase the chemical analysis and refractoriness of the sample joint method: a pair of sample curing methods were supplemented:
a pair of test report content supplement
This part is submitted by the whole Shengshi material standard group chemical technical personnel and must be: wood part responsible for the sale of single unit bath Yang and fire material thorn Xu Lengyuan: this part of the drafting single letter: Nan Sheng Refractory Co., Ltd. Beijing Lier Village Refractory Material Co., Ltd. Zhangli Solid (Dalian) 1 Industry Co., Ltd. Cement Plant of China Great Wall Industry Co., Ltd. wwW.bzxz.Net
The main drafters of this part: Peng Sigao, Ge Bi. Ban Xiaoyu, Yang Shuiyou, Zhang Yuzhen, Zhao Jianli and Liu Yunzheng. This part is published in the past versions of the international difficult 220910977 Refractory Cement Reading 1 Inspection and Regulation YB/T5232-1-2003 This part specifies the definition and test method of the fluidity of dense hot-flowing refractory castables, as well as the equipment, molding method, curing and combustion equipment for test preparation. This part specifies the fluidity test and sample preparation of hot-flowing refractory castables for use in this part 2 Normative references The following documents are applicable to this part The referenced documents after the date of reference and all subsequent revisions (excluding errata) are not applicable to this part, but the parties to this part may not reach or agree on new versions of these documents. For all referenced documents without a date, the latest version of this part shall apply. GBT17617-1998 Refractory Raw Materials and Unshaped Refractory Materials 3 Terms and Definitions
This part adopts the following terms and definitions
Flowability
The flow and performance of refractory castables under the action of self (and/or) external force after adding water or other filter binders and mixing well. Expressed as vibration flow value:
D:=(- 10) ×%
dynamic value,
average diameter of the ceramic injection material under the influence of self-(rental/or) external force, unit, meter (m). 3.2
frequency protection cnre
after the fire filter material is formed, it is kept under the specified rational and wet conditions for a period of time to obtain strength. 4 principle
4.1 fluidity test
after adding a certain amount of water or other liquid agent to the fire injection machine and mixing evenly, it is placed in the mold on the vibration table to remove the rough mold. Within a certain period of time, under the action of the specified amplitude, its average true diameter is determined. 4.2 sample preparation
before the disaster injection material is determined according to the dynamic test, the amount of water (or other liquid agent) is determined in the mixer for a "certain time". After the mixture is semi-uniform, it is molded, cured and baked under the specified conditions. 5 Experimental space and equipment
5.1 The temperature of the experimental room should be maintained at 5℃~25℃, and the relative humidity should not be less than 50%. 5.2 The curing box for the specimen should be able to maintain a relative humidity of not less than 90℃ and a temperature of 20℃.
YB/T5202.1—2003
5.3 Mixer The working principle of the mixer is shown in Figure 1. The mixing phase and the control sheet have sufficient strength. 5.3.1 The stirring volume is 51.～11. The soil should be used at a constant volume of 101~4U1. according to the flow value. It is mainly prepared with a ten-type mixer. 5. 3.2 The shape of the stirring blades should be consistent with the internal shape and size of the stirrer. The stirring blades can revolve around the axis (the special axis of the stirring blade) and at the same time revolve around the axis (the symmetrical axis of the stirring blade) in the opposite direction. The speeds are: low speed (r/r:n)
1st gear (slow speed:
speed (fast speed)
_20±5
revolution (ai)
The stirring barrel can be raised and lowered to adjust the distance between it and the stirring barrel. 5.4 The surface of the power platform must be kept horizontal. Only the auxiliary vertical direction plate can be used. The power supply can be used. When measuring the flow rate value with a dry surface of 0.75mm0,n5mr, the surface should be 5.5 Scale 25*g: plate 10g5kg, precision 1g
5.6 Balance 1000g, precision 0.1g.
5.7 Quantity nmml. Degree 1)-mL: 20)mL. Degree-mL Net dynamic range tube
Push card bearing
Second rate blade
Figure 1 Environment hanging machine working principle buried more surrounding
5.8 Dimensional mold upper inner diameter is 70mm lower inner diameter is 10mm, height is mm. 5.9 Ruler length ucn, ★mr.
5,10 Vernier ruler length 3m
5.11 Sand coat:
5. 12 Mould
5.14 Mixing.
5.15 Oven,
5. 16 Dryer.
5.17 Shovel.
Bean, 1 Sample extraction
The method shall be carried out in accordance with GB/T175171998
6.2 Sample reduction
YH/T 5202.1—2003
Mix the samples fully, divide the sub-species into sub-species, and then mix the sub-species into sub-species according to the proportion, mix them together, and then divide them into two parts by quarter method. One part shall be used as the laboratory sample for inspection. See the price as a sample, the storage time is generally not more than 1 month.
6.3 Chemical analysis sample and refractoriness sample
From the sample of the test room, the quartering method is used to reduce and extract, and the chemical analysis sample and refractoriness sample are prepared by crushing and grinding in the specified recording material. Under special circumstances, the sample after pressing and pressing is confirmed by the sampling source: and it is indicated in the inspection request. 7 Sample specifications
Based on the test, different sizes of samples can be prepared. The detailed size is shown in Table 1. 1. Sample specifications for different test items
Sample size/:u
23×116X5
160 ::40x40
0~.1x2~.25
2:2: X 1u0
20×20×100
10019x33
50×5c×5c
Test items
Resistant to fire
Strength, flammability
Permanent or permanent heat treatment, visible pores, volume density, thermal expansion
Abrasion resistance
Explosion resistance
Test material with a size of 8mm, and a type A specimen. Cut the test piece into the required size. & Flowability test
8.1 Preparation of test material
8.1.1 Weigh the test material that is high enough to be tested twice or with a flow rate value from the uniformly mixed test sample and put it into the test tube. 8.1.7 Dosage: Use water, the water temperature should be room temperature. Confirm: mL, the first time you can add water equivalent to similar products: When measuring again, add or reduce water according to the situation, each time the reading should not be greater than 3 of the weight of the test material, other liquid binders can be weighed or reached. 8.1.3 After the test material is trimmed, quickly stir it, and add water or other concentrated binders. After 2i times, clean the mud adhering to the outside of the mixing piece and the wall of the barrel, and stir it for 2min. The total mixing time is 5min. 8.2 Determination of fluidity value
8.2.1 Put the cone mold on the vibrating cutter, first add the test material to the cone according to the probe depth, heat it with a sample, and add the remaining material, and mix it for half a year.
8.2.2 Receive the model, report the movement, according to 153, 8.2.3 Use a vernier ruler to measure the effective value of the test book-called ~ every 15 intervals, and report the average value, accurate to 1tm. 8.2.4 According to 8.2.:~8,3.3. Take the average of the two times of flow value as the result of flow value, record the water content and flow value of the test material, do not use the material that has been stirred for each measurement, the preparation of the test material and the two measurements should be completed within 1 cm, 8.2.5 There is no need to add the material when adding the flow material, and it is not necessary to stir after filling. After removing the mold, leave it for 1 minute. Continue to measure the flow value in 8.2.3~8.2.4.
YI/T 5232.1—2003
8.3 Determination of the amount of water (or other liquid binders) added Use the test materials with different average water content to measure the flowability. When the flow value reaches 6%, it is suitable for water and is used as the test mold.
9 Sample molding
9.1 From the uniform test material, weigh the amount required for molding the tile sample, and cut it into the water (or other liquid combination dosage) determined in 8.3.
9.2 Prepare the test material according to 8.1.3.
9.3 The test mold is fixed on the vibration table, and the test material is lifted up and lifted up on the test mold slightly upward: while vibrating, the whole test is weighed. 9.4 Stop vibration, remove the test material that is higher than the edge of the test mold with Yue Xiyun, and smooth the surface of the sample. For free-flowing materials, the total vibration time is generally 8~SC. For insulation materials, the vibration time is 50--. The total time for the sample to be molded after water is solidified shall not exceed 10-nin.
9.5 Self-flowing For the molding of the test strip of the injection molding material, directly mix the test material evenly and load it into the test mold, leave it for 2 mir., and then smooth it with a slow blade. 9.6 When the client provides the sample preparation and curing methods, the method provided by the client shall prevail: and it shall be stated in the inspection report. 10 Sample curing
10.1 The air-hardening refractory injection molding sample strip is placed in a laboratory environment for curing for 24 hours, then demolded, and stored under the same conditions for another 24 hours. 10.2 The water-hardening refractory injection molding sample strip is placed in a curing box with a relative humidity of not less than 0% and a temperature of 20℃ + 1℃. After curing for 24 hours, it is demolded and then cured under the same conditions. 10.3 The hot silica refractory injection molding sample strip is placed in a T0~110 oven with a temperature of 125°C and then baked under the same conditions for 24 hours. h.
11 Sample drying
For the test piece that needs to determine the rate of change, after curing, remove the pressure, measure the size immediately, and then put it into the oven to gradually raise the temperature to 11U±C, and heat it at 11c-15t or under specified conditions for 24h. After drying, the sample will be cooled in the oven until it is full. After cooling, the test piece should be stored in a container. The storage time should not exceed 3 hours. 12 Test report
The test report should include the following contents:
a) Unit:
6) Sample name:
c) Test room temperature and relative temperature:
|) Test binder and flow value;
Activation time and mixing time:
Curating conditions:
g Test unit;
h) Test personnel:
Test date.
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